Features: Make of PU, silicone and polyurethane foam filling, it is soft and have good elastics, wear resistance, and certain durability, which can bear long terms cycling use. Bicycles seats cushion can not only provide a comfortable sitting feeling, but also effectively relieve fatigue and discomfort caused by long sitting postures. The grooves in middle of the Saddles cover is ergonomically designs and the air flows from middle of the cushion, making it breathable and dissipates heat without being stuffy. Easy to install and disassemble, suitable for most mountain and road vehicle seats. Whether mountain bike, road bike or fold bike, exercise bike seats cushions can all be perfectly fit. Specifications: Component: PU, silicone, polyurethane foam filling Color: Black/Silvery Size: about 290x185x30mm/11.42x7.28x3.15inch Package Includes: 1Pc Bicycles Saddles Cover note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.