quality - -friendly clear silicone and high density milk foam. Soft and durable. Effectively absorb shock and reduce pain. Extra Wide Bike Seat Cover: The oversized bike seat cover comes with extra padding gel, making it perfect for your prostate and tailbone relief. Super soft bike saddle helps you say goodbye to pain and enjoy cycling now. [Anti-] This bicycle seat cushion adopts a specially designed non- saddle cover and drawstring design, which can effectively prevent the bicycle seat from sliding. Center Hollow Pressure Relief Design: Our pads are aerodynamically hollow and breathable to not only relieve pressure, but also provide and comfort on long rides. EASY TO INSTALL - The bike seat cover comes with non- leather, drawstring and 2 extra straps to keep the bike seat cover on the seat. Wide Bike Seat for Wide Bikes - Bike Seat Dimensions: 11.8 x 10.6 x 2 inches (L x W x H). Weighs 17 ounces for bike seat widths in the 8.5-10 inches range. Suitable for mountain bikes, spin bikes, exercise bikes, road bikes, cruisers, electric bikes. Colour: Black Material: Silicone+Sponge Package Contents: 1 * Bicycle cushion Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.