This is a handlebar end plug. It is made of environmental friendly aluminum alloy material, durable to use. You can install the handlebar end plug easily by screwing it into your road bike handlebar, not easy to come off. Features -Color: black -Material: aluminum alloy -Size: 3.00X2.00X2.00cm/1.18X0.79X0.79in - Environmentally friendly material, lightweight and stable installation - The buckle expands and locks the handlebar opening. After installation, it is stable and not easy to loosen - The lightweight design of the handlebar plug is made of materials to reduce the burden of riding and make riding easier - The part of the plug contacting the handlebar is round and designed to not damage the handlebar after installation - Easy to use and easy to operate, will not interfere to normal function. Package list: 2 x Plugs