1The surface is made of good quality PU, waterproof, durable, wear-resistant and easy to clean. With thick foam inside, ergonomic design, high elastic and comfortable to use. 2Adopts stainless steel rack, high strength, wear-resistant and long life time. 3This back rest is suitable for most of bikes, electric bikes and other bikes, convenient and safe. 4Wider than the typical seat your bike have, this backseat supports the waist area and helps reduce fatigue. 5Easy to install and remove. An ideal replacement for riding.Features:The surface is made of good quality PU, waterproof, durable, wear-resistant and easy to clean. With thick foam inside, ergonomic design, high elastic and comfortable to use.Adopts stainless steel rack, high strength, wear-resistant and long life time.This back rest is suitable for most of bikes, electric bikes and other bikes, convenient and safe.Wider than the typical seat your bike have, this backseat supports the waist area and helps reduce fatigue.Easy to install and remove. An ideal replacement for riding.Specification:Item Type: Electric Bicycle BackrestMaterial: PU + Stainless SteelColor: BlackSize (WidthxHeight): Approx. 21x21 cm/ 8.27x8.27 inchBack Height: Approx. 8.5 cm/ 3.35 inchRack Width: Approx. 4 cm/ 1.57 inchHole Distance: Approx. 4 cm/ 1.57 inchPacking List:1 x Electric Bicycle BackrestNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.