Made of aluminum alloy, good rust resistance, durable and strong. Comes with 2 adjustable scribers, can scribe both sides of a mortice at once. Bubble level for horizontal direction and 45 degree, 145mm effective scale, 1mm minimum scale, the 0 scale position is at the center of the installation planing pin, mark center on up to 2 inch. Easy to use, good performance and high efficiency. Accurate marking, a good helper for woodworking. A Handy little tool to draw soft metals, wood, ceramic tiles and more. Specification: Material: Aluminium alloy Color: Red Size: Approx. 15x12cm/ 5.9x4.7inch Package Includes: 1 Set Woodworking Scribe Gauge Note: Please allow 1-3cm error due to manual measurement, pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item, pls understand, thank you