ITEM NAME:Plastic Tubeless Tyre Wheel Stem Air Valve Caps Dustproof Tire Valve Caps Product Description Description: 2pcs Plastic Tubeless Tyre Wheel Stem Air Valve Caps Bike MTB Motorcycle Dust Dustproof Tire Valve Caps Universal Specifications: Material: plastic Colour: Black Size: 10mm*10mm*10mm/0.39*0.39*0.39'' Net weight: 3g Gross weight: 3g American valve universal Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item.Thanks for your understanding. Included: 2 x Tire Valve Caps.Net weight: 3g. Material: plastic. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. Mon. to Sat. 12 months Warranty.