Make half circles, circles and clamshells with ease as registration marks are on the template itself. This clear template helps with cutting 8" Clamshell/Glam Clam, Circle, Half Circle, Orange Peel and Drunkards Path/Quarter Circle designs. 'The Clammy' 8" all in one ruler makes-clamshell, circle, half circle, orange peel and quarter circle by Latifah Saafir Studios.