1,Applicable Range: Includes 2 feeders, each equipped with 2 screws and 2 sliders, which can be used for standard 30 and 40 slots, as well as fixed to T slots or backrest. 2,Easy Adjustment: Double way feeding design, can adjust the roller height according to the thickness of the wood, suitable for table saws, band saws, inverted carving machines, etc. 3,Aluminum Alloy: The main body of the roller feeder is made of aluminum alloy, with CNC machining and anodized finish, which is resistant to rust and corrosion. 4,Dual Bearing Roller: This woodworking feeder is equipped with dual bearing rollers, and double sliding blocks for fixation, ensuring sufficient force, stable and shockproof. 5,Feeding Function: Equipped with inclined angle roller for feeding function, with high accuracy, good stability, safe operation, ensuring that the wood does not bounce.