Andoer NNR-200 200mm Professional Rail Nodal Slide Metal Quick Release Clamp for DSLR Cameras Camcorder DV ( Item#: D2911 )

Features:Multi-purpose rail nodal slide with AS standard screw-knob clamp?? precise laser engraved scale and spirit level?? excellent for panoramic and macro photography.Clamp with captive knob stops at maximum opening.CNC precision machined from lightweight aircraft grade aluminum alloy.All metal construction.Black hard anodized finish with smooth surface.Specifications:Brand: AndoerModel: NNR-200Material: Aircraft Aluminum alloyColor: BlackScrew Thread: UNC1/4"-20Item Size: 23 * 3.9 * 2cm / 9.1 * 1.5 * 0.8inItem Weight: 176g / 6.2ozPackage Size: 23.5 * 4.2 * 2.2cm / 9.3 * 1.7 * 0.9inPackage Weight: 185g / 6.5ozPackage List:1 * 200mm metal quick release clamp