Usage: Dovetail guide for wood joints is a great tool for carpenter, suitable for both furniture enthusiasts and carpentry. Clear scale: with a clear scale , one side of the dovetail ID mask is 1:5 for softwoods and the other side is 1:8 for hardwoods. Easy to use: with accurate scale , the dovetail guide tool is easy to use and you can easily mark dovetails for wood joints. Dimensions: size is 2.6 x 0, 9 x 0.7 inches, which is compact and lightweight, so you can carry the dovetail marker in a convenient place. Aluminum alloy: Dovetail guide is made of premium aluminum alloy, the dovetail marker is sturdy and durable. Product Features: Material : aluminum alloy. Weight: about 16 g. Dimensions: approximately 6.5 x 2.2 x 1.8 cm. Application: carpentry. Contents: 1 dovetail guide Note: Because measurements are taken by hand, the sizes indicated may vary slightly. Thank you for your understanding.