Features: These light emitting gate headpieces provide strong visibility in low light conditions, ensuring easy identification of your vehicle during nighttime for secure rides and parking. Produced from premium rubber, these gate headpieces resist wear and damage, lasting longer than traditional metal alternatives while staying lightweight. Designed for fast installation, just twist these gate headpieces onto standard tire stems in seconds—no equipment required for easy maintenance. Offered in multiple bold shades to improve your vehicle’s look, adding a distinctive touch to cars, motorcycles, or bicycles. Consistent most standard tire stems on cars and motorcycles, eliminating fit concerns and providing flexibility for all vehicle owners. Specifications: Component:Rubber Inner Diameter：Approx.7.5mm /0.29inch Outer Diameter：Approx.12mm/0.47inch Height：Approx.16mm/0.62inch Color:Red/Blue/Green/Pink/Yellow/Multiple Color Package Includes: 12pcs/20pcs/40pcs Tire valves Stem Caps note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.