Features:  Stainless steel ruler body resists to rust and corrosion, sturdy and durable. Clear laser engraving scales, accurate and wear resistant. Come with a movable bubble level for easy marking at 45/90 degree. The ruler and bubble level bracket can be used separately, convenient and practical. Suitable for measuring, marking, woodworking, etc. 9 kinds of functions: 1. Internal right angle measurement 2. 45° measurement 3. Depth measurement 4. Level measurement 5. Width measurement 6. Lineation 7. Vertical measurement 8. 45 ° slope measurement 9. External right angle measurement   Specification: Material: Stainless steel + aluminum alloy Measuring range: 0-300mm   Package list: 1 x Combination Square Angle Ruler