Creative Grids Cat's Cradle Tool Quilt Ruler makes a quilt block that looks complicated easy enough The ruler comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration Use the Cat’s Cradle XL to create 8 different sizes, ranging from 4-1/2" to 8" finished blocks. The cutting requirements for each is printed right on the ruler. Exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts All Creative Grids are made in the USA