Features: Double standard quick release base, connecting base, rabbit cage expansion quick installation board accessories. Equipped with quick release handle, self-locking design, and knurled locking knob. The clamp is equipped with digital scale, allowing for precise positioning. Equipped with multiple 1/4-20 and 3/8-16 screw holes, it can connect sliders, tripods, accessories, etc. Quality aluminum alloy material, lightweight, wear-resistant, and corrosion-resistant. Specifications: Material: Aluminum Alloy Color: black Size: approx. 105x88x20mm/4.13x3.46x0.79inch Package Includes: 1Pc Quick Disassembly Base 2Pcs Mounting Screw 1Pc Allen Key note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.