[High quality material] The main body is high-strength high-quality aluminum alloy. The surface is anodized and processed by CNC. It is durable, rustproof and wear-resistant, and the outside is bright [Strong expandability] There are two types of press on the left and right. Each type is equipped with two sliders and two sliders, which can be used in the 30/ 45 standard slot, or replaced with small sliders and fixed in the T slot or on the back of . It can be used for more consoles such as drama, band saw, and inverted carving machine [Easy to operate] The roller height can be flexibly adjusted according to the thickness of the wood [, no rebound] Bearing wheel, shockproof double roller, fixed double slider, sufficient force, stable without shock, and unhindered wood propulsion [Compared with traditional feather board] With inclined angle pulley, it has the function of material guide: operation, no rebound of wood, high precision and better stability Material: Aluminium alloy colour: red Package Contents: 2 x Bearing Roller Feeder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.