As a stand to hold the flashlight, sound box, or pump, etc. 360 degrees rotary, easy to handle. Easy to install without any tools. Quick release and assembly design. Robust construction, material, no stinky, firm and durable odor. Specifications Material: Plastic, rubber Shell color:black Weight: 36g Specifications: Easy to install Quick release waterproof Shockproof 360 degree rotation Adapts to different sizes of tube Package Included: 1*Bicycle Lamp Bracket Notes: Due to different computer screen, the color of the actual items may slightly different from the listing images. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understanding.