Features: With laser-engraving, its scale is-clear and precise. Portable to carry and convenient to use. Suitable for woodworking, study, drawing. Multi-angle measuring ruler slides and locks into any desired angles to save you-time on repetitive measurements. This carpentry tool helps you get the job done fast and with less hassle and headaches. Specifications: Material:Aluminum Alloy+ABS Protractor: Approx.100x56mm Ruler: Approx.304x25mm/11.96x0.98inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Ruler