1ZPRESSO Q2 Manual Coffee Grinder Portable 38Mm Heptagonal Stainless Steel Burr Coffee Mill Step Adjustment Hand Crank Grinder. Q2 MANUAL COFFEE GRINDER – HEPTAGONAL VERSION. 1Zpresso Q2 Manual Coffee Grinder 1pcs, Cleaning brush 1pcs, Portable canvas bag 1pcs. Dimensions: 14.5 x16 x 4.6 cm. Materials: 420 Stainless steel, 304 stainless steel, aluminum alloy, and wood. Pentagonal Burr // Discontinued. Better grinding efficiency compared to the Heptagonal version. Heptagonal Burr More effortless compared to the Pentagonal version. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Your satisfaction is guaranteed! All of our items, unless otherwise stated, will only run on 120 volts. Please check to make sure your country complies with these specifications. We will work with you to resolve any problem you may have.