Durable and Stable:Super crab clamp is made of solid anti-rust aluminum alloy for high durability. Feature a protective non-slip rubber pad on the inner side to provide strength and stability. Ballhead Mount: Multi-Function Double Ball Head Clamp with 1/4" screw and 3/8 screw, widely compatible with cameras, video lights, microphones, phone holders LED light and other devices. Widely Adjustment Range:The super clamp fits all tube, handlebar, cross bars, desk with a diameter from 0.5 inch/13 mm to 1.5 inch/38 mm. Suitable for moto, mountain bike, cycling. Flexible Adjustment:The long adapter in the middle supports 180 adjustment and 360 rotation at both top and bottom. You can adjust it at will to get the angle you want. Color: black Size: refer to the size chart Delivery quantity: 1 piece Note: Other items are not included here, other pictures are just showing effect. Due to the difference between different monitors, the picture may not reflect the actual color of the item. The products are all measured manually, please allow errors, thank you!