Sturdy plastic hexagon-shaped roller marks line increments of 3mm, 5mm, 7mm, 10mm, 15mm and 20mm in polymer clay. Set includes a 6-inch stainless steel ruler that measures both inches and centimeters/millimeters. Ruler and roller are packaged in a black and clear plastic case.
Rulers>H20-3520TL>Tools>Jewelers Tools>Measuring Tools>Rulershttps://www.firemountaingems.com/itemdetails/h203520tlH203520TLRuler and roller set, plastic and stainless steel, silver and grey, 6-1/4 x 1-inch hexagon roller and 6-inch ruler. Sold per set.//image1.fmgstatic.com/images/p3520tlb.jpg5.515.51As Low As $2.54 per set