2 Rollers Malt Crusher Include: 4 pcs Hoppers 2 pcs Metal Strip 1 Crank Handle 2 pcs rollers 1 Cleaning Brush Assembly Parts Material: Aluminium Alloy for body, hopper and crank handle. Stainless Steel for 2 rollers and other small screws. How To Use: The Hoppers allow you to hold up to 7 LBS of grain. You can remove the handle of this malt crusher to attach a 3/8 Electric Drill (low speed). Tips: The blue stickers keep the metal from being scratched up. Attach an Electric Drill at 200-300 RPM to speed up the milling process and save your energy for the brew day. The rollers’ distance is adjustable, between 0.025”to 0.1”, you can adjust it base on your use. Include: 4 pcs Hoppers, 2 pcs Metal Strip, 1 Crank Handle, 2 pcs rollers, a Cleaning Brush and Assembly Parts. Material: Aluminium Alloy for body, hopper and crank handle. Two Rollers Design: This Grain Mill is perfect for large batches and high efficiency milling. Through two rollers, all your grain will be crushed twice in one cycle.