MaterialMotorcycle key cover case shell made of premium CNC aluminum alloy,titanium . It is easy to hold and with surface oxidation polishing, which made it rustproof. FuctionKey case perfect for protecting your key from damage, marks, and dust. Easy InstallationKey head tip cover with holes, easy to hang on keyring,portable and easy to carry. Widely UsedMotor modified key cover works perfect for motorcycle keys, Suitable for fishing,camping, traveling, hiking, outdoor activities. Perfect GiftMotorbike key head protectors also a perfect gift to be a present for your friends. Size Chart: Hex Key Head: 3.1cmx2.9cm/1.22inchx1.14inch Plum Key Head:3.1cmx2.4cm/1.22inchx0.94inch Key Chain:10cm/3.94inch Package Includes: 1 Key Cover Case Shell or 1 Key Chain Optional Note: Please allow slightly errors due to manual measurement and different monitors.