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Description
maxi cosi 4 years plus MAXI COSI Kani 4-In-1 Convertible Car SeatA four in one convertible car seat that accommodates children from birth through age ten, with an ultra slim profile for three across seating and auto magnetic chest clip for fast, secure buckling. Key Features Four Modes of Use: Rear facing infant seat (2. 318 kg 540 lbs), forward facing harness seat (1029. 5 kg 2265 lbs), high back belt positioning booster (1845 kg 40100 lbs), and backless booster (1845 kg 40100 lbs). Ultra Slim Design: Narrow
A four-in-one convertible car seat that accommodates children from birth through age ten, with an ultra-slim profile for three-across seating and auto-magnetic chest clip for fast, secure buckling.
Key Features
- Four Modes of Use: Rear-facing infant seat (2.3–18 kg / 5–40 lbs), forward-facing harness seat (10–29.5 kg / 22–65 lbs), high-back belt-positioning booster (18–45 kg / 40–100 lbs), and backless booster (18–45 kg / 40–100 lbs).
- Ultra-Slim Design: Narrow profile allows three car seats to fit side by side across the back seat in most vehicles without compromising safety or comfort.
- ClipQuick Auto-Magnetic Chest Clip: Magnetically guided buckle snaps into place for quick, frustration-free fastening — even with a squirming child.
- 10-Position Headrest with No-Rethread Harness: One-hand headrest lift automatically adjusts the harness straps to match your child's growth, eliminating the need to manually rethread.
- One-Click UAS Installation: Self-retracting UAS (LATCH) connectors simplify installation for a confident, secure fit in your vehicle.
- Machine-Washable EcoCare Fabrics: Seat cover made from 100% recycled plastic bottles is soft, breathable, machine washable, and dryer safe for easy care.
Specifications
| Brand | Maxi-Cosi |
| Product Type | Convertible Car Seat (4-in-1) |
| Rear-Facing Weight Range | 2.3–18 kg (5–40 lbs) |
| Forward-Facing Weight Range | 10–29.5 kg (22–65 lbs) |
| Belt-Positioning Booster Weight | 18–45 kg (40–100 lbs) |
| Backless Booster Weight | 18–45 kg (40–100 lbs) |
| Headrest Positions | 10 |
| Recline Positions | 5 |
| Installation | One-click UAS (LATCH) connectors |
| Harness | 5-point with no-rethread adjustment |
| Cup Holders | 2 removable, BPA-free, vegan leather wrapped |
| Fabric | EcoCare 100% recycled; machine washable & dryer safe |
| Safety | Meets or exceeds federal safety standards |
Frequently Asked Questions
How long can my child use the Maxi-Cosi Kani?
The Kani is designed to serve your child from birth through approximately 10 years of age, spanning four distinct modes. It starts as a rear-facing seat for infants and transitions all the way to a backless booster for children up to 45 kg (100 lbs).
Can the Kani fit three-across in my vehicle?
Yes. The Kani features an ultra-slim profile specifically engineered to allow three car seats across the back seat of most vehicles. Actual fit may vary depending on your vehicle's interior dimensions.
How do I convert the Kani to backless booster mode?
An intuitive one-hand release mechanism lets you detach the seat back in seconds, instantly converting the Kani into a lightweight backless booster without tools or complicated steps.
Warranty: Maxi-Cosi products are backed by a limited warranty. Please visit the Maxi-Cosi website or contact their customer support team for complete warranty terms, coverage details, and any registration requirements that may apply.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
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Product Reviews
★★★★★ 5
Very effective!
Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
I switched my son to this toothpaste and it has been great! I haven’t noticed whitening, but his teeth do look good and clean after he has brushed. He loves the flavor. And he is one to complain about “spicy” toothpaste. This toothpaste has never been whined about in my household. In fact, switching to this toothpaste has made brushing his teeth simpler because he enjoys the flavor so much. I have noticed it doesn’t foam up like other toothpaste’s do.
Another side story, and probably the biggest thing, I think this is actually shrinking my sons cavities. His pediatric dentist told me he would need fillings before his teeth could fall out at 12 (12 year molars). I saw the cavities on the xrays. A year later, the cavities are smaller. And the dentist said if things can maintain this way, there will be no need for fillings! He does brush morning and night, and often after lunch because we homeschool and he has that ability. But I’m just thrilled that my son could potentially avoid this procedure!
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Love this stuff! Both toddler and mom approved
Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
I'm a repeat buyer! My toddler loves the taste and I love the ingredients. Boka is an awesome brand and I feel safe giving it to my kids and knowing their teeth are being cleaned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Love
Size: 4 Ounce (Pack of 2), Set name: G. Orange Cream, Ela Mint
Great toothpaste, kids loves the orange, very subtle taste not too strong. The mint is great tasting and mild. Teeth feel very clean. And best of all NO TOXIC FLUORIDE!!
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Reviewed in the United States on May 3, 2026
★★★★★ 5
More than a book-the Universe is nudging you to go here!
Format: Paperback
Where do I begin, where am I now, where am I going and how do I get there. I've been a Kundilini student for years. Masuda has been my teacher, guide and friend. No matter where I find myself at any given time or place, and whether I'm looking for understanding universal truths, tools, practices, or insights, this book points me. You have to do the work, but you want to because with this book you'll understand why and know how. On any given day, you will find a roadmap visually, spiritually and practically to empower your Chakras. So what are they... why do Chakras matter..how do I understand and develop their power in me. Masuda does an extraordinary job explaining, illustrating and giving you all the practice tools in a way that works for you. Personally, I love this book because I can take it with me anywhere, can choose/find what I need from it at any given time and she explains and shows me what to do and how to get there. It's so easy to follow and the results are so meaningful.
I'm a visual person... In the most perfect ways this book leads me, and shows me physically and mentally. I can back up or move faster depending on where the universe points me and then I do the work. Bottom line, I'm a better human. Thank you Masuda for this extraordinary 'lesson planner' and helping me unlock what's already in me!!
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Reviewed in the United States on February 2, 2024
★★★★★ 5
The empowerment tool we all needed!!
Format: Paperback
Wow, okay where do I start?? Before I opened the book, I had a general sense of yoga and chakras. Being a Reiki practitioner, but a fairly new one, I’ve learned how critical balancing chakras is to feeling healthy and pain-free, but I never took enough time to work on my own. This book makes it so easy to understand what can be sometimes complex ideas for people new to the space of wellness and yoga. There’s truly never a dull moment and I love the option to read page by page or flip to the section you need. It’s extremely well written and I loved the intro from Masuda. She shared her personal story which was so relatable and further inspired me to start my journey of a balanced chakra system that I know will only aid me further in my life’s purpose. It’s also pretty cool to know I’ll have a tool in the form of this book to reference anytime I might be experiencing symptoms of a chakra that needs my attention. It’s literally a life/soul manual, who doesn’t need that? So grateful Masuda chose to share her tools and practice with so many all over the world. This is the ultimate gift for anyone in your life! I can’t wait to tell more people about it.
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Reviewed in the United States on February 9, 2023