Process: CNC precision machining, laser engraving of scales Body Shape: Triangle Function: Multi angle scriber, triangle ruler, height gauge Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Red Material:Aluminum Alloy Package Contents: 1 * Woodworking Square Protractor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.