1、All-metal materials, CNC precision machining, surface oxidation treatment 2、It has three 3/8"-16 threaded hole to directly mount the clamp onto a tripod/monopod, and also comes with three 1/4"-20 bushing adapters. 3、Fast loading base with antiskid lock function. 4、Add 1/4'' conversion thread to be directly connected to the ordinary camera 5、Jaw can be opened from 39mm to 43mm Description: All-metal materials, CNC precision machining, surface oxidation treatment. It has three 3/8"-16 threaded hole to directly mount the clamp onto a tripod/monopod, and also comes with three 1/4"-20 bushing adapters. Fast loading base with antiskid lock function. Add 1/4'' conversion thread to be directly connected to the ordinary camera. Jaw can be opened from 39mm to 43mm. Specifications: Material: Aluminum Alloy Color: Black Item size(Length x Width x Thick): Approx.120 x 50 x 11mm / 4.72 x 1.97 x 0.43in Package include: 1 x Clamp For Quick Release Plate Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.