KongYiJi Black Double Thicken Silicone Bike Bicycle Soft Gel Saddle Seat Cover Cushion Pad Made of anti-skid and wear-resistant elastic lycra material. Fits most bike saddles. Anti-slip gripping material on underside of cover Deep center relief zone virtually eliminates pressure points on sensitive parts Improved drawstring system holds cover securely in place Size:280*180*40mm