Features: 1/4 Inch & 3/8 Inch Screw ConnectionWith 1/4 inch & 3/8 inch screws, the super clamp is compatible with most of devices, such as sports cameras, digital camera, DSLR camera, phone holders, camera monitor, LED video light, etc. Adjustable Strong ClampFeaturing 3kg max. load bearing and max. 6cm clamping range, you can use the super clamp to fix your device to most bicycle handlebars, railings, pipes, table edges and so on. High-quality MaterialMade of aluminum alloy material, plus the anti-slip rubber pad, the clamp is durable and sturdy. Wide ApplicationsWith 1/4 inch & 3/8 inch screw hole for convenient accessories extension, the super clamp is a good helper for video recording, live streaming, photography, etc. Warm Tip for UsageIt's suggested to use the super clamp with ball head or magic arm(both are not included) to achieve more flexible usage. Specifications: Material: Aluminum Alloy Load Capacity: max. 3kg Clamping Rang: Max. 6cm Packing List: 1 * Super Clamp 2 * Screw Connectors 2 * Rubber Rings