Description: Made of superior quality iron, exquisite craftsmanship and durable in use. Corrosion resistant and vibration resistant. With best rubber seal, good sealing performance and no oil leaking. Provide you a clean and comfortable feeling. Simple installation. Perfectly match to your motorcycle. Suitable for NINJA 250 2008-2012 NINJA 300 2013-2014. Package includes : 1 Set Ignition Key Switch?included 2 Keys?, 1 Piece Gas Tank Cap, 4 Piece Screws. Specification: Gas Tank Cap Diameter: 10cm/3.94inch Material: Iron Color: Silver Package Includes: 1 Set Ignition Key Switch?included 2 Keys? 1 Piece Gas Tank Cap 4 Piece Screws Note: Easy to install, but professional installation is recommended