This metal ruler is made from durable stainless steel with etched standard and metric measurements. This handy ruler features a non-skid cork backing that protects leather surfaces from being scratched. It measure 12 inches on one side and 30 cm on the other side. Great for marking patterns and meauring distance for making holes, rivets, snaps etc. It makes a wonderful straight edge to run your utility knife along when cutting leather and patterns.