SmallRig quick release clamp (Arca type compatible) 2143 Key features: 1. Arca-like compatible. 2. Multiple 1/4''-20'', 3/8''-16'' threaded holes and full mounting holes. 3. The lever type base for quick release. SmallRig quick release clamp (Arca type compatible) 2143 Is a lever type base, the tightness of which can be adjusted by wiggling the tiny screw on the lever, so it is compatible with most Arca type plates. It has multiple 1/4''-20'', 3/8''-16 threaded holes and deepened mounting holes on the bottom, so you can mount it on tripods, booms and more devices. Designer: Tracy Joy Compatibility: Arca Type Compatible Package includes 1 x 2143 Quick Release Clamp 4x1/4''-20 Screw1 x 3/8''-16 Screws 2 x Hex Wrench Product Dimensions: 72x70x14mm Net Weight: 135g Package Weight: 162g Materials: Aluminum Alloy