This product is durable mounting kit, adoption of premium and durable aluminum material. It allows you to easily install the , easy and simple. Fit for professional or personal use. This is an installation tool with front fork washer bike front fork bowl set gasket, it can help you when you want to install your mountain bike. Features - Color: Black - Material: Aluminum - Size: About 4.00X3.00X3.00cm/1.57X1.18X1.18inch - Produced by workmanship, bike headset spacers have smooth surface and excellent performance, suitable for mountain bike, road bike. - Material: aluminum alloy bike head cover and earphone gasket, steel bike front fork earphone star nut, stainless steel bolt, steel installation, lightweight and durable, simple and convenient installation, durable. - Delicate workmanship: aluminum alloy bike head cover and earphone gasket are treated with black anoxic oxidation, the surface does not fade. - Corrosion resistance; The head cover of the aluminum alloy bike can be tightened to prevent from entering, and the headphone gasket can be adjusted according to requirements. - Main application: It is installed between the handle and the front fork, and the multi-size can adjust the height for you to improve the riding comfort of the bike. Package list: x washers 4 x Screw 4 x Suspended core 4 x Handle vertical cover