Features High Efficiency: The steel ruler has high precision and high efficiency, and the brass slider can be freely moved to the required position to tighten the screws and marks. Durable Material: Mathematical ruler is finished with satin finish for better readability and rust resistance. Wear-resistant, long service life. Has enough durability and sturdiness. General Brass: The brass positioning block is suitable for all kinds of steel rulers, with high efficiency, and the construction ruler is not easy to fall off. With ruler stops, you can now turn any steel ruler into a precision marking tool. There are brass sliders for smooth operation. Easy to use: The woodworking ruler moves the limit block to the desired position, just tighten the screw to mark the measured value, which is easy to use. There are two readings in inches and centimeters. Note: Please check the product size carefully before purchasing, we attach great importance to customer experience and hope you can have a pleasant shopping experience. Features: 1. They are satin chrome-plated for better readability and rust resistance. 2. There are two readings of inches and centimeters. 3. Made of steel material, durable and not easy to wear. 4. High efficiency, move to the required position locking screw 5. There is a brass slide block which is smooth to operate. Specification: Item Type: Steel Ruler Material: Steel + brass Length: Approx. 30cm / 11.8in Package List: 1 x Steel Ruler 1 x Slide Block Package List