Features Aluminium Alloy --- The feather board main body is made of excellent aluminum alloy, with anodized oxide finish, CNC processing, rust and corrosion resistance. Shock Absorption --- Flexible PU wheels increase friction, ensuring good shock absorption effect, preventing board deviation, and ensuring more stable propulsion. Standard Guide Rail --- The table saw press guide rail can be used for 30 or 45 standard slots, or can be replaced with small slider, fixed on the back of the T slot or bracket. Adjustable Height --- The height of the feather board can be flexibly adjusted according to the thickness of the wood, only needs to be installed on the chute or T slot. Included Accessories --- This kit includes a feeding guide rail, 2 T shape slider blocks, 2 T shape screws, and 2 fixing rods, with a simple structure that is easy to assemble and use. Specification: Item Type: Table Saw Stock Roller Material: Aluminum Alloy Package List:1 x Press Roller2 x T Slider Blocks2 x Fixed Hand Wheels2 x T Screws2 x Slider Bars Package List 1 x Press Roller 2 x T Slider Blocks 2 x Fixed Hand Wheels 2 x T Screws 2 x Slider Bars