Description: 【Material】T track hold down clamp is made of quality aluminum alloy material, which is sturdy and wear resistant, and can be used for a long time 【Feature】The Arcuate Press Plate Clamps accommodate materials up to 45mm thick and features easy to tighten knobs for quick installation or removal of stock material 【Practical】Simple structure, convenient to use, strong clamping force, and wide application range 【Multifunction】Engraving Machine Pressure Plate Clamps Useful in many woodworkings and metalworking applications for work holding, positioning, and fixturing 【Wide Applications】Fixture Clamp is ideal for work holding, positioning, and fixturing for DIY woodworkings or metalworking, including routers, drill presses, CNC, table saws, jigs, panels, vertical mills, and more Specification: Material: Aluminum Alloy Color: Multicolor Size Chart: 6.2cmx1.6cm/2.44inchx0.63inch Package Includes: 2 T Track Hold Down Clamps Note: Please allow slightly errors due to manual measurement and different monitors.