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🚗 Elevate your big kid’s ride with safety and style!
The Graco Junior Maxi i-Size R129 Highback Booster is a lightweight, safety-certified car seat designed for children 100-150cm tall (approx. 3.5 to 12 years). Featuring a 10-position adjustable headrest, retractable cupholders, and a machine-washable seat pad, it combines comfort, convenience, and compliance with the latest R129 safety standards in a sleek Midnight finish.








| ASIN | B0BMGNDJHV |
| Age Range Description | Kid |
| Best Sellers Rank | 968 in Baby Products ( See Top 100 in Baby Products ) 14 in Car Seats (Baby Products) |
| Brand | Graco |
| Brand Name | Graco |
| Colour | Midnight |
| Customer Reviews | 4.7 out of 5 stars 3,427 Reviews |
| 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 |
| 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 | Alloy Steel, Polyester, Polypropylene |
| 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 |
| Product dimensions | 53.7D x 40.8W x 81.7H centimetres |
| Unit Count | 1 Case |
S**H
Great
Easy to assemble great value for money and the cup holders are fantastic the little man loves his new chair for his journeys
M**I
Easy to assemble and use
Clean, study and comfy. My daughter like it
R**R
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.
C**R
Decent car seat
Good value car seat. Lightweight and seems fairly sturdy. Only negative is it looks like the material may rub up easily.
M**Y
car seat
bought for grandson pleased with purchase easy to install
M**M
Graco Junior Maxi i-Size R129 Highback
Got this item as I had used it before with my other grandchildren. Great child seat as it grows with the child, who likes the cup holders that can be used to hold not only drinks but hide little treats as well. Strong, sturdy quality, easy to use & set up.
C**N
Easy to install
Brilliant
A**R
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.
S**I
Great for space saving for multiple children next to each other
This car seat has exceeded expectations. It’s comfortable enough for my 4 year old to sleep in during long car drives, it fits well in our cars as it’s narrow enough for my son to sit in the middle seat and his baby sister on the other side. So very optimal for space saving.
J**R
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
M**U
Testé pendant 1 mois : excellent rapport qualité/prix !
Siège utilisé depuis un mois et une semaine pour un enfant de 5 ans. Le siège est vraiment léger, ce qui est un gros plus au quotidien. Il est facile à installer et mon enfant s’y place tout seul sans difficulté. La ceinture reste simple et pratique à mettre, rien de compliqué. Petit point qui n’est pas vraiment négatif mais qui aurait été un vrai plus : un système Isofix aurait été appréciable. Comme le siège n’a pas d’attache, il faut penser à boucler la ceinture lorsqu’il est vide, sinon il peut bouger dans les virages ou lors des freinages. Pour les trajets un peu plus longs, les porte-gobelets font clairement le bonheur de mon enfant. La têtière est réglable en hauteur, ce qui permet une utilisation prolongée. Le dossier est également détachable pour continuer à l’utiliser en mode rehausseur lorsque l’enfant grandit. Pour le prix, il n’y a vraiment rien à redire. Je mets cinq étoiles sans hésitation à ce produit
M**O
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.
M**A
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.
Trustpilot
2 weeks ago
2 months ago