Product standard: one handle with one blade + one knife cover (blade No. 11 tip) Upgrade 1: Standard: + plus 5 blade box (blade No. 11 tip) Additional: all aluminum handle, non-slip design, comfortable grip; Sk5 alloy tool steel blade, sharp, long life; Blade can change color aluminum oxide light color product specification: 142 mm * 8 mm Φ packing: OPP (customizable packaging) color: silver, black gold (customizable color) USES: glass stickers cleaning, cutting paper, plastic film, textiles, wood carvings, handicrafts, mobile phone sticker to use, and family DIY. [usage] 1, the cutting head in the middle of the tool rod head clearance, tighten nut of the cutting tools, you can use. 2, methods as well as holding a pen in hand, the strength should be appropriate. 3, in order to protect the blade, the paper should be under the pad. [Caution] As the blade is very sharp, cover it immediately after use. Keep it out of reach of children. In use, the direction of the force is always the same as the direction of the blade, avoid hard force left and right, otherwise the tip is easy to break (the characteristics of steel).