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🚗 Elevate your big kid’s ride with safety, style, and smart comfort!
The Graco Junior Maxi i-Size R129 Highback Booster is a forward-facing car seat designed for children 100-150cm tall (approx. 3.5 to 12 years). Featuring a 10-position adjustable headrest, soft cushioned seatpad, and retractable cupholders, it meets and exceeds R129 safety standards. Lightweight and easy to install with seat belts, it combines premium safety with practical convenience in a sleek Midnight color.








| Age Range Description | Kid |
| Asin | B0BMGNDJHV |
| Best Sellers Rank | 123 in Baby Products (See Top 100 in Baby Products) 1 in Car Seats (Baby Products) |
| Brand Name | Graco |
| Colour | Midnight |
| Country Of Origin | China |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,453) 4.7 out of 5 stars |
| Forward Facing Car Seat Minimum Height | 60.5 Centimetres |
| Forward Facing Maximum Weight | 36 Kilograms |
| Harness Type | 3-Point |
| Included Components | Car seat, instruction manual |
| Infant Toddler Car Seat Type | Booster Car Seat |
| Installation Type | Seat Belt |
| Item Dimensions D X W X H | 53.7D x 40.8W x 81.7H centimetres |
| Item Type Name | car seat; big kid car seat; toddler car seat; forward facing car seat; R129; i-size |
| Item Weight | 3.49 Kilograms |
| Manufacturer | Graco |
| Manufacturer Part Number | 8CT899MDNEU |
| Manufacturer Warranty Description | 2 year manufacturer |
| Material Type | Alloy Steel, Polyester, Polypropylene |
| Maximum Height Recommendation | 150 Centimetres |
| Maximum Weight Recommendation | 36 Kilograms |
| Minimum Height Recommendation | 100 Centimeters |
| Minimum Weight Recommendation | 15 Kilograms |
| Model Number | 8CT899MDNEU |
| Number Of Height Positions | 10 |
| Orientation | Forward Facing |
| Unit Count | 1 Case |
User
Great
Easy to assemble great value for money and the cup holders are fantastic the little man loves his new chair for his journeys
User
Good quality and essential
Great Product easy to use also it's fit in any car even small carQuality is very goodAlso durable for longer
User
Safe, comfortable, and easy to use!
I’m very pleased with the Graco Junior Maxi i-Size Booster Car Seat! It’s a great option for keeping my child safe and comfortable during car rides. The seat is easy to install, and the adjustable backrest ensures a snug fit as my child grows. The padding is soft, and my child finds it comfortable for longer trips. The side-impact protection gives me peace of mind, knowing my little one is well protected. I would definitely recommend it for anyone looking for a reliable and affordable booster car seat.
User
Decent car seat
Good value car seat. Lightweight and seems fairly sturdy. Only negative is it looks like the material may rub up easily.
User
Great
Great quality
User
Safe & lightweight
Appears well made, lightweight to move around, and safe with car seatbelt and back height adjustment to suit growing children. Pleased with purchase through Amazon.
User
Fantastic value
Super easy to install, both my kids find theae comfortable - naps in the car after long days out not a problem! Easy to adjust and take in and out to swap cars etc as needed
User
Easy to assemble and use
Clean, study and comfy. My daughter like it
User
Bra för pengarna
Köpte till styvsonens barn.En alldeles utmärkt produkt som dessutom kan användas när barnets längd förändras.Barnet i fråga tycker att stolen är bekväm, så då ger det såklart extra stjärna
User
Leggero, comodo e molto pratico per l’uso quotidiano
Seggiolino davvero pratico e ben fatto, soprattutto per chi cerca una soluzione semplice ma comoda per il bambino. Una delle cose che ho apprezzato di più è la leggerezza: si sposta facilmente da un’auto all’altra senza fatica.La seduta è spaziosa e il bambino viaggia comodamente anche durante tragitti più lunghi. I materiali sembrano di buona qualità e l’imbottitura offre un buon comfort senza risultare troppo rigida.Anche l’installazione è risultata semplice e intuitiva, senza dover perdere troppo tempo con regolazioni complicate. Il design è essenziale ma funzionale e nel complesso dà una buona sensazione di sicurezza e stabilità.Ottimo rapporto qualità-prezzo, consigliato per praticità e comfort.
User
Très bon siège, sécurisant et confortable !
Siège auto parfait pour la transition vers un réhausseur à dossier. Il respecte la norme i-Size R129, ce qui est très rassurant. Mon enfant y est très bien installé et l'assise reste confortable même sur les longs trajets.
User
Perfect
My kids are already 4 and 5 so the eggshells were not comfortable for them. This seats are perfect, comfortable, easy to keep clean. Will stay with us many years for sure.
User
Ok for this price
Not bad just bit wobbly
Trustpilot
1 day ago
1 week ago