Specifications Materials steel base thick soft foamColor black white red blue greenSize 27 21mFeatures The bottom of the dual spring design high elastic dampingPunching high density foam comfortable touchMicrofiber leather wear resistant anti scratchInner layer made of fabric with glue points to ensure no slip Interlayer made of thick soft foam comfortable durable Put it over your existing seat cinch it up and hop on Suitable for mountain bike Surface layer is skid and anti abrasion Package Included 1 x Bicycle Seat Cushion