Feature: 1. STABLE GAUGE MOUNT: Sturdy mounted knob can prevent the gauge from rolling, more stable, you can use with confidence 2. DURABLE ALUMINUM ALLOY MATERIALS: Aluminum alloy body with surface hard oxidation treatment, possess comfortable grip, wear resistant, scratch resistant, durable 3. WITH CLEAR SCALE: Come with clearly visible scale, easy to measure and read, quick and easy operation, balanced feel 4. LINEAR ARC DRAWING HEIGHT MEASUREMENT: Three use multi functional wheel marking gauge can be used to draw circles, lines, and height measurement 5. FOR VARIOUS MATERIALS: Wheel marking gauge is suitable for ceramic, iron, acrylic, wood, glass and other materials, very versatile Specification: Item Type: Wheel Marking Gauge Product Material: Aluminum alloy Scale: 200mm Function: Draw circle, draw line, measure height Uses: Can be used for ceramics, iron, acrylic, wood, glass and other materials. Package List: 1 x Scriber1 x Pencil Note: Pay attention to the protective rollers to prevent rust from getting stuck.