Haoge 140mm Nodal Slide Double Dovetail Focusing Rail Plate with Metal Quick Release Clamp for Camera Panoramic Panorama Close Up Macro Shoot fit Arca Swiss RRS Benro Kirk Haoge LQR-140CP is an Arca-type compatible Multi-Purpose Rail Nodal Slide with a laser-engraved reference scale with 1mm increments on both sides. Designed with Clamp and Dual Dovetails Quick Release Plate. Ideal for Close-up and Panoramic photography. Dual dovetail design, both sides can be mounted equipments. Designed with 6pcs UNC1/4 screw thread for extended function. Clamp with screw-knob help you locking equipment quickly. Accurate calibration fulfill the demand for quickly locating. Note: the item can not fit Level-Release System of RRS / Markins / Vanguard and other brands