Features: Double Crab ClampsDouble clamps design, supporting 1.5-4cm clamping width, the super clamp mount can be fixed to handlebars, crossbars, selfie stick, etc. Dual Ball HeadsBoth ball heads can rotate 360 degrees, flexible to adjust various angles according to different usage needs. Easy TighteningEquipped with T shape locking knob, it can be operated with one hand, quick and easy to tight or loose. Stable and Anti-slipBoth clamps are covered with silicone pad that can not only prevent scratch to your devices, but also increase clamping force. Durable MaterialThe strong clamp is made of high-quality ABS, and the bracket link rod is made of aluminum alloy, durable and sturdy. Specifications: Material: Aluminum Alloy + ABS Clamping Distance: 1.5-4cm Packing List: 1 * Super Clamp Mount