An efficient and consistency grinding with solid burr grinder prevent overheat that affect coffee bean flavor. The special design structure of coffee grinder allows user to adjust the grind size from outside by simply turning the ring in the grinder Feature 1️⃣ ceramic burr grinder prevent overheat 2️⃣ 6 grades adjustable coarseness setting 3️⃣ Easy to clean 4️⃣ BPA-free glass 5️⃣ Removable handle , easy for storage the precise setting levels allows a specific grind from coarse to fine. 1-2 grade for espresso machine, 2-3 grade for Moka pot, 3-4 grade for pour over coffee, 4-5 grade for French press, 5-6 grade for cold brew coffee Size / Volume : L12.8 x W6.2 x H17.5cm / approx. 20g (coffee mill hopper), 48g (glass container) Material : 304 Stainless Steel, Glass, PU leather, PP, Ceramic, Aluminum Alloy, Walnut Wood