It can be used as a quick marking instrument, depth gauge and ruler, and also as a straight edge for marking and sawing. Provide accurate measurement, durable groove scale, wear-resistant, clear and easy to read, equipped with metric measurement units. Made of aluminum alloy, it is not easy to rust, light and durable. Perfect for DIY carpentry, this ruler helps you save time and improve efficiency. This woodworking movable block measuring tool is a perfect gift for DIY enthusiasts and woodworking enthusiasts. Name: Woodworking Center Ruler Colour:silver+red Material:Aluminum alloy Package Contents: 1 x Woodworking center marking ruler 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.