characteristic: Multifunctional three-dimensional carpenter's marking angle ruler-including T-shaped marking, square ruler, angle measurement and dovetail joint, to meet various marking requirements.10-90 arbitrary marking-30, 45 and 60 fixed angles are available to meet various marking requirements.Dovetail joint Marking Gauge-Two specifications of dovetail joint template, which can be used according to actual needs.Multi- disassembly-different combinations are not restricted by the angle, and can be used alone or in combination.High-quality material selection-the product is with high-quality aluminum alloy, precision machining, exquisite workmanship, beautiful and durable overall.describeName: Woodworking RulerMaterial: Aluminum alloycolour: RedPackage Contents: 1 x Woodworking marking rulerOnly 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.