Specifications: Material: Aluminum Alloy Size: 80mm x 50mm x 22mm QR Plate Size: 50mm x 38mm x 10mm Weight: 130g Package : 50mm Arca Quick Release Plate x 1 Quick Release base clamp x 1 1/4'' to 3/8'' Screw Adapter x 1 1/4'' Screw x 1 Wrench x 1 Durable Construction: Sturdy aluminum alloy construction with CNC precision machining, anodic surface treatment, corrosion resistance and wear resistance Universal Compatibility: 1/4" and 3/8" screw adapter fits most DSLRs, tripods, monopods, stabilizers, gimbals and heads, with Arca-Swiss quick release plates Precision Leveling System: Built in 3 bubble levels ensure control of vertical or horizontal direction, helping you adjust the position of the more precisely Optimal Dimensions: 50mm (1.97") in length with adapter jaws that accept plates from 38-42mm wide, with any Arca Swiss style plate Secure Protection: Non-slip pad protects the and prevents wearing out, featuring knob design that locks securely to prevent accidental dropping of the Complete Accessory Kit: Package includes 50mm Arca quick release plate, quick release base clamp, 1/4" to 3/8" screw adapter, 1/4" screw, and wrench for convenient setup and installation