Specifications: The widened design increases the force area of the buttocks and relieves the soreness of the buttocks caused by long-term riding New air guide slot, thickened high elastic sponge, front narrow and round, soft and comfortable to ride. Two styles are available (spring style, shock-absorbing ball style). Item Name: Bicycle Seat Cushion Material: Faux Leather, Sponge Attributes: 1: Spring Type, 2: Shock-absorbing Ball Type Features: Hollow Design, Durable, Stable, Breathable Size: 23cm x 17cm x 10cm/9.06" x 6.69" x 3.94" (Approx.) Package Includes: 1 x Bicycle Seat Cushion