1. Made of stainless steel material, high toughness, wear resistance and can provide long service time. 2. Adopts both metric units and imperial units, scale is accurate, clear and wear . 3. Folding design, the ruler body can be folded to save space when it is not used. The sharping end can be storaged inside for safety. 4. 360 degree rotary design, for measuring and marking different angles. 5. Wide applications, suitable for DIY and professional woodworking, creating perfect lines, accurate angles and precise measurement for architect, engineers, draftsmen, carpenters. Name: Digital Angle Ruler Folding length: 210mm/8.27in Expand length: 320mm/12.60in Handle size: 140x27x21mm/5.51x1.06x0.83in Colour:Black Material:Metal+Plastic Package Contents: 1 * Digital 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.