The clever design of our new compass tool allows you to cut 14 different sizes of circles. With this compact multipurpose tool, you can cut or scratch circles from 1 inch to 7 inches in diameter. You only need two needle tools (or equivalent) to use the Compass Tool on a slab of clay. When you are not building by hand on your workbench, the pointed tip, flat edges and rounded end come in handy for throwing on the dial. size: 4.75″ x 1.125″ material: maple wood Comfortable, beautiful and practical. Handcrafted by a creative team in St. Louis, MO.