[Adjustable and Flexible] This tool is adjustable and flexible suitable for attaching to a T-slot or the back of a mountain. It has high precision and high-strength. ;) [Easy to Use] Mount the product on a miter or t-slot unscrew the knob to move it up and down. It is easy to use and install. It is suitable for many boards and thicknesses but not suitable for boards less than 1 inch thick. ;) [What You Get] The package includes 1 left wheel presser 1 right wheel presser 4 t-shaped screws 4 30/ 45 chute nuts. It is suitable for table saws band saws flip routers and more. ;) [Premium Aluminum Alloy] This table feather loc board is made of high quality aluminum alloy rust-proof and stable to use. The surface is anodized CNC processing wear-resistant and durable to use. ;) [Shock Absorption and Practical] The double press wheel increases the friction force and has a good shock absorption effect. One piece is in place and the board is not easy to deviate. The anti-vibration double rollers are fixed by double sliders which are stable without vibration and the wood is pushed smoothly without hindrance. ;)