1. Size: small size is about 28.5x15.5x2.3 cm, large size is about 29x21x2.6 cm 2. Weight: about 253 grams for small size, 309 grams for large size 3. Material: lycra+SBR+silicone+sponge+PVC 4. Application: mountain bikes, road bikes, exercise bikes, electric scooters, shared bikes, etc. 5. Features: PVC design at the bottom to prevent slipping, not easy to move during riding, not easy to fade, not easy to deform, breathable and soft, not easy to deform when sitting for a long time, breathable groove design, keep air circulation, relieve pressure
