Supervised by a bicycle specialty store!! This is an extra-thick cushion bicycle saddle cover. It reduces the burden on your buttocks with a double structure of silicone & urethane. Brand new, unused. The size is 28cm long x 26cm wide, suitable for mama-chari bikes and exercise bike saddles. (Not suitable for slim sports-type saddles.) The thickness is about 3.5cm and is elastic, providing high cushioning. It's hard to slip off with a fixing string, drawcord, and non-slip backing! ☆Bonus of a waterproof/sunshade reversible cover☆ ☆Easy 3-step installation [with instructions, no tools required]☆ As this is a personal purchase, the 30-day warranty shown in the 7th image is not included.