AMACO PolyRuler
PolyRuler is the only ruler designed with the polymer clay artist in m ind. This six-sided tool ensures perfect and uniform polymer clay bead s and strips every time. Each side has markings in one of 6 incremen ts from 3 to 20 millimeters. Simply press PolyRuler gently into the c lay then cut with a sharp blade at the desired marks. It's that simple !