The scooped end of the Garrity Tools Thumb tool allows you to use it instead of your actual thumb when hand-building. Pressing seams, shaping slabs, or even trimming a clay pot on the wheel, this pottery tool makes light work of any ceramic project. size: 7" long x 1.25" wide material: maple wood Comfortable, beautiful, and practical. Handmade by a creative team in St. Louis, MO.