1、The U-shaped guardrail and backrest form a fenced seat to prevent the child from falling. 2、The four-point adjustable harness allows the baby to sit more stably, adding another layer of safety to the child. 3、The guardrail armrest and folding footrests provide a more comfortable riding experience. Features: The U-shaped guardrail and backrest form a fenced seat to prevent the child from falling. The four-point adjustable harness allows the baby to sit more stably, adding another layer of safety to the child. The guardrail armrest and folding footrests provide a more comfortable riding experience. The product is simple in construction and comes fully packaged. It can be easily installed in just a few simple steps, which is very convenient and time-saving. This rear child bike seat allows parents to enjoy riding with their children and experience the fun of parent-child riding. Specifications: Material: Carbon steel Size: 21*26*31cm/ 8.3*10.2*12.2in Weight: 2.5kg/  5.5lbs Package List: 1 * Child Bike Seat 2 * Straps 1 * Child Bike Seat 2 * Straps