in 1 Digital Protractor - Measure not only length, but also 360 angle (inside angle, outside angle). Locking Function Use locking screws to lock both legs in the desired position or angle. 1" Large LCD Display - This metal protractor with electronic LCD digital display, you can switch between degrees and minutes with the "/" button. The "HOLD" button stores data during measurement, the "ON/OFF/Zero" button resets the data to zero by short pressing any angle; angle lock button for each angle. Excellent Quality - The electronic protractor made of high-quality forged stainless steel is laser engraved (mm and inch scale), abrasion and corrosion resistant. The analog protractor on the protractor does not lose its color during use, and the scale remains clear even after a long time. This angle finder ruler can measure both angle and length, in both metric and imperial scales. Woodworking: setting angles of table saw, miter saw, band saw, etc. Construction Sketching Drawing The rulers of this digital angle finder are made of brushed stainless steel durable. The angle finder can be used in various fields instead of an angle ruler, straight ruler or square ruler, etc. Easily draw lines with the stainless steel rulers. Please hold the ruler when turning the screw. Turn clockwise to tighten; turn counterclockwise to loosen. The stainless steel edge is sharp for cutting papers and engraving marks on wood. It is dangerous for children. Please keep it out of reach of children. Product Name Electronic Digital Display Angle Product Material Stainless steel ruler body and ABS plastic cover Product Range: 0~360c Product Accuracy: 0.05 Working Temperature: 0~50 Working Temperature85%RH Battery Type CR2032 3v Product Packaging blister packaging Product Size 27.8x10.0x3(cm) Color: silver Shipped Quantity: 1 piece