This easy to manipulate 5" by 15" Charming Itty Bitty Eights Ruler designed by Lisa Bongean of Primitive Gatherings is the perfect size to cut 5" charm squares quickly and easily. The dashed one inch markings increase visibility - which improves accuracy. The ruler highlights the 1/8"markings which are hard to use on traditional rulers. The black and white dashed 1/8" markings show on both light and dark fabrics and ensure accuracy when cutting pieces for miniature quilts. Refer to the black diamonds when cutting 1/8" units; the white diamonds when cutting 1/4" units. The 3/16" marking printed along the length of each side of the ruler are the perfect width for cutting wool bias strips for applique. One is white and one is black. Choose the line that shows best on your chosen fabric.The ruler slides easily over the fabric until pressure is applied. Then, our exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts!