1. Size and quantity: Height: 1.3cm, diameter:1cm, 10 pcs in one package
2. Material and application: rubber, american valve cap, applicable for universal bicycle cap
3. Function: Stuffed with rubber inner gas leak , eliminate leak hazards
2. Material and application: rubber, american valve cap, applicable for universal bicycle cap
3. Function: Stuffed with rubber inner gas leak , eliminate leak hazards