We-R Memory Keepers-Supreme Ruler. The ruler has an easy grip hand and non-slip bottom. The handle doubles as a finger guard. It features a durable metal edge for cutting. The measurements are in inches and centimeters with a center alignment guide. The transparent plastic makes it easy for positioning on a cutting mat. The adjustable placement guides are perfect for cutting in multiples. This package contains one We R Memory Keepers Supreme Ruler, 18x3.25 inches. Imported.