Adjustable Size: Dual-clamp design secures rod-shaped objects or tabletops with diameters ranging from 0.9 to 0.98 inches. Aluminum Alloy Material: Premium aluminum alloy material, featuring corrosion resistance and impact resistance, ensuring robust durability. Silicone Protection：The rubber adjustable clamps included in the bike light mounting bracket set effectively prevent scratches on both the bike light and frame. Quick and Easy Installation: The mount It's easy to adjust loosen or tighten, with installation tools included in the kit. Upgrade Design: The bike brackets installation adopts a thickened design, which has strong stability.（Please check the product image and description before buying to make sure it fits your bike light.）