Featuring a crown shape and rhinestone design, this valve cover has a shiny and exquisite appearance that can play a good decorative role. It can be installed easily with hand tightening and no additional tools are required. Since this valve cover has a good sealing percompatiblemance, it can prevent air leakage effectively. And it also has good dustproof percompatiblemance, which can prevent water or sand from entering the tires to ensure the safety of driving. It is made of high-quality zinc alloy, ABS, rhinestone material. There are 5 colors compatible your reference. It is suitable compatible car, scooter, motorcycle, bicycle, etc. Item Name: Valve Cover Material: Zinc Alloy, ABS, Rhinestone Features: Dustproof, Good Sealing, Exquisite, Rust-proof Size Details: Valve Cover: Diameter: 1.5cm/0.59", Height: 1.9cm/0.75", Hole Diameter: 0.75cm/0.3" (Approx.) Starter Trim Ring: Diameter: 3.81cm/1.5", Inner Diameter: 3.04cm/1.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Valve Cover 1 x Starter Trim Ring