Compass Rotary Circle Cutter for cutting perfect circles with quilting fabric / Paper / Leather / Vinyl etc from ThreadNanny New Professional Quality Rotary Circle Cutter with Extra Blade and Pencil Lead They can be used on many different materials including Cloth, Paper, Leather, Vinyl etc Effortlessly cut perfect circles from 1- 3/16" to 9-1/2" Built-in blade cover and plastic pivot spike guard for safety when not in use Comes with Complete Set of Instructions. With take the standard 18mm blades from Olfa.