OLFA ROTARY CUTTER. STRAIGHT EDGE ROTARY CUTTER. CUTS CLOTH,PAPER,LEATHER AND VINYL. FOR BEST RESULTS, USE ALONG WITH ROTARY MAT CUTTING BASE. COMES IN 3 SIZES 28MM(11/8"),45MM(13/4"),60MM(23/8").CUTTER TOOL INCLUDES ONE BLADE. REPLACEMENT BLADES AVAILABLE.