Gotd Gel Top Cruiser / Comfort Bicycle Seat Cushion Cover - Bike Saddle Topper 3D Silicone Material: Sponge + High Quality Slow Play Silicone Made of Lycra Nylon & Gel to keep your hip soft when you cycling Applicable Car: Size fits for kinds of bikes Features: Workmanship is very fine, Comfortable, Upscale, Good Quality, Good Air Permeability Weight: about 55g. Size: 28cm x 17cm