Multi-Angle Measuring Ruler, Precise 12 Sides Aluminum Alloy, Jig Layout Tool with Punch, Drill Tool for Builders, Craftsmen, Carpenters, DIYersProduct Feature 1. Made of aluminum alloy, anti-drop, durable. 2. Laser calibration, high precision, clear reading. 3. Can be freely deformed and used in various ways. 4. Can be used for ceramic tile, glass, marble, wood plank. 5. This product is mainly used for opening and positioning tiles , which is very suitable for laying tiles. Specification: Material: aluminum alloy 2 Units of measurement: CM and Inch 12 Folding ruler, single section length: 12cm / 4.72 '' Note: Please allow 1-3mm difference due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for understanding. Package included: 1 X folding rule