The bike backseat handlebar is a safety device specially designed for mountain bikes, folding bike and road bikes, allowing kids backseat safety to use. The bike backseat handlebar has anti-aging properties and can remain in new condition after a long period of use. Features -Color:Red -Material:Plastic, alloy -Size:23.00X2.50X2.50cm/9.04X0.98X0.98in -Application:Suitable for seat tube with diameter of 25.4mm-31.8mm/1.00- 1.25inch - Bicycle backseat handle is made of reliable alloy and plastic material, durable and safe to use. - Suitable for installing various bicycles, such as mountain bikes, ordinary bicycles, road bikes, etc. - This bike rear saddle safety armrest can bring your kids safety when you cycling a bike to take your kids. - The back mount child seat backseat handle is specially designed for adult bike with children backseat. - This bike child armrest is suitable for seat tubes with a diameter of 25.4-31.8mm, can be used in most bicycle backseat frames. Package list: 1 x bicycle rear seat handle 4 x screws 4 x nuts