Features The cutter has high quality stainless steel holding rods, precise threads and is not easy to rust. The cutter is made of high-strength PC material, high permeability, not easy to break. The cut is concise, so you can make interesting crafts with this glass bottle cutter The cutting wheel is made of high-quality alloy material, which has a high hardness and a sharp cut. If you have any problems with use, please contact us in time for processing, we are happy to be there for you. Specification: Bracket material: stainless steel. Material: PC. Item Type:Glass Cutter Cutting diameter: approx. 20-230mm/0.8-9.1inch Product use: cutting round bottles. Package list: 3 x acrylic plate. 2 x lead screws. 10 x nuts. 2 x plastic tubes. 1 x screwdriver. 1 x sandpaper. 1 x user manual (English language not guaranteed). Note: Make sure that the bottle is empty and when open. It is forbidden to clog the bottle or cork. The opening of the straight cut bottle is very pointed, so you can sand the edge with sandpaper to avoid injury to your hands. If you do not cut and open the bottle, please repeat the second and third steps. Package List 3 x Acrylic Plate 2 x Lead Screws 10 x Nuts 2 x Plastic Pipes 1 x Screwdriver 1 x Abrasive Paper 1 x User Manual