Description: 【Ergonomic Design Backrest Saddle】: Wide bicycle seat with comfortable backrest (removable backrest) for more comfortable riding. 【Premium Material】: Bike saddle with backrest uses quality PU and metal seat shell, which is comfortable, breathable, waterproof, highly elastic and can be used for a long time. 【Easy To Install】: Bike seat with backrest can easy mounts to the rear rack of a bicycle or e bike, ideal for anyone looking for a comfortable and safe ride. 【Widely Used】: Bicycle saddle seat with back support is suitable for most models on the market, including electric vehicles, bicycles, mountain bikes, and folding bikes. 【Suitable For Many Types Of Electric Vehicles】: The vehicle has a triangular bracket, a removable battery, with a seat tube, , etc. that can be installed. Specification: Material: Iron PU Product Size: Cushion 25cmx22cm/9.84inchx8.66inch, Backrest 20cmx12cm/7.87inchx4.72inch Package Includes: 1 Bike Saddle with Backrest Note: Please allow slightly errors 1-2cm differences due to manual measurement.