Each woodworking ruler equip with a wall-mounted storage rack, which make it easily store Ruler thick 1.5mm approximately, much strong than others(0.8mm typically Woodworking ruler is a multifunctional device for length measurement and Angles drawing.this tool for every woodworkers and Loosens the nut first , adjust it to a suitable Angles , and tighten the nut to fix at this Angles The protractor can adjustable from 0 to 70 degrees and firmly every 5 degrees, Manufacturer: XIAOQENAN