Product Details: Commodity: Rear child seat Model number: YC-801 Material: environmentally friendly PP plastic Applicable age: 18 months to 6 years old Load range: below 40kg Seat weight: about 4.8kg Product size: height 71cm* width 36cm* thickness 32cm Internal space size: length 23cm* width 26cm Installation requirements: Bicycles are required to have a rear shelf, the load-bearing capacity must be more than 25kg, the length is 25cm and the width is 12~15cm. If it is a small folding car, the rear shelf or luggage rack must be more than 45cm away from the ground.