Features: Its closely fitting designs allows for precisions cut, while being suitable for most MFT workbench hole positions. Achieve precise cut with our Dovetails jigs, boasting a smooth operating experience and perfect resistant to bending and twisting thanks to its uniformly refined threaded screw. By utilizing a protective gaskets, our jigs evenly dismemorial pressure, ensuring the wood surfaces stays undamaged throughout the woodworking process. Make from steel, ensures excellent load capacity, and it will not bend or break. Safety tail buckles and antiremoval buckles designs keep your tool firmly in place, allowing you to focused on your craft. Specifications: Materials: steel Styles: 120mm/160mm/200mm/300mm 120mm size: about 17.5x9.4x3cm/6.89x3.7x1.18inch 160mm size: about 21x9.4x3cm/8.27x3.7x1.18inch 200mm size: about 25.3x9.4x3cm/9.96x3.7x1.18inch 300mm size: about 35.3x9.4x3cm/13.9x3.7x1.18inch Package Includes: 1pc Guide Rail Clamps note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.