Mitre box is a practical tool in woodworking. It uses with back saw and can saw wood or gypsum board in the angle of 45-degree, 22.5-degree and 90-degree. Features: Made of ABS , features high durability and strength. Use with back saw (not included). Perfect woodworking tool. 12-inch or 14-inch mitre box for option. 12-inch: use F-clip or other wood boards to clamp workpiece; 14-inch: use the attached movable jaws to clamp workpiece. Use self-tapping screws (prepare by yourself) to fix the mitre box for stably and accurately sawing. Adjustable sawing angle, such as 45-degree, 22.5-degree, 90-degree, allowing for straight cuts and beveled corner cuts. Sawing slowly to prolong the mitre box's service life and both mitre box and workpiece. Fits for wood, gypsum board, etc. Note: 1. Hand use, it's not as accurate as milling machine or carving. Please choose other tool if you have to be strict with the sawing angles. 2. Size and color may be slightly different due to manual measurement and different conditions. Thanks for understanding. Specifications: Size: 12-inch/ 14-inch (Optional) Color: Orange Material: ABS Sawing Angle: 45°/ 22.5°/ 90° Item Size: 12-inch: Inner Length 295mm / 11.61in, Inner Width 90mm / 3.54in, Inner Height 50mm / 1.97in 14-inch: Inner Length 350mm / 13.78in, Inner Width 100mm / 3.94in, Inner Height 65mm / 2.56in Item Weight: 12-inch: 340g / 11.99oz 14-inch: 540g / 19.05oz Package List: 1 * Mitre Box