Flashlight Diameter Range: 30-32 mm (1.18-1.26 inch) Clamp Size: 65mm (2.56inch) H x 47mm (1.85inch) W x 25mm (0.98inch) D Thread Type: 1/4inch screw thread for mounting Adjustment Mechanism: Dual knurled knobs for quick tightening and release Max Load Capacity: Up to 1.5kg (3.3 lbs) Compatible With: All standard , 1-inch ball head systems, dive camera rigs, dual handles, and underwater lighting setups Specifications: C: 1-inch ball head to flashlight clip Colour:As Shown Material:Aluminum Alloy Package Contents: 1 x Diving Flashlight Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.