Features: Powerful Double Clamps: Inspired by the claws of crab, using the grip claw force, no matter the square or circle, everything can be clamped. 12mm-58mm clamping width. Flexible Angle Adjustment: Double clamps can be rotated 360 degrees horizontally and can be flexibly adjusted according to different usage needs. Quick and Easy Tightening: Equipped with T shape bar, can be operated with one hand, quick and easy to tight or loose. Max. loading weight is 1.5kg. Stable and Non-slip: Both clamps are covered with silicone pad that can not only prevent scratch to your devices, but also increase clamping force. Durable and Weatherproof: Made of aluminum alloy material, more stable and more durable, and there is no fear in outdoor usage, rust protection and and corrosion-proof. Specifications: Material: Aluminum Alloy Max. Loading Weight: 1.5kg Clamping Distance: 12-58mm Item Weight: 281g/ 9.9oz Packing List: 1 * Super Clamp