Easy to use: Quick and easy to draw straight lines with accurate dimensions without other cumbersome tools. Precise: High working efficiency and accurate scale to for ensure correct marking. Multiple Sizes: The locator is available in a variety of sizes, suitable for rulers of various widths, and can hold the ruler firmly and stably. The design of the ruler groove: Just limit the ruler to the required size and lock the screw for easy use. Material: Lightweight and small size, easy to store and carry. Made of carbon steel, , smooth, rust-proof, will not crack or deform., Manufacturer: MINING