Features: 1. This round center finder compass can find the center point on irregular items; For example you can easily find the largest circle on the log avoid unnecessary waste of wood corners and achieve maximum output. 2. It can be applied wherever a circle is needed fits for wood turning art crafts school projects and finishing woodworking; For wood poster boards plastic metal glass composite materials etc. 3. During use you can place this round template on the object you want to measure find the center push the awl into the center hole and then draw a circle around the center point. 4. The lathe center finder is made of thick enough transparent acrylic with a central hole and clearly marked circles which allows you to see exactly what you are doing and helps you measure quickly and easily. 5. Thicken design of ruler body durable longer service life the number scale is the radius clear reading not easy to stain easy to operate. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Description: Size: Diameter: 20cm/ 30cm Thickness 50mm includes: 1 x Round Center Finder "