From Bentley, this bike features: The frame is made entirely out of carbon fiber Premium leather seat, soft yet durable Adjustable seat allows a perfect fit 12" McLaren Senna inspired wheels are made from lightweight magnesium alloy and covered with air filled rubber tires Air-filled tires enable a smooth ride and help the child to keep their balance while riding Anti-slip grips for a better control and a safer ride Recommended ages: 25 years old Child Weight: Max. child weight 30kg Product Weight 3.3 kg Product Size (without color box): 89 x 40 x 53 cm Rims: Magnesium Fork: Carbon fiber Seat: Eco-Leather Used Materials: Carbon fiber, Magnesium Alloy, Rubber, TPR, Eco-leather Assembly required Warning: Choking hazard. Small parts. Not for children under 3 years Imported. Design to Inspire -Made in collaboration with McLaren Automotive, these balance bikes represent the utmost in quality and innovation. The bikes bring meticulous design and innovation into your child's world.