Make hundreds of Lazy Angle blocks in 1 to 6 inch finished sizes. Learn the simple technique of cutting and piecing A and B shapes to create a multitude of patterns. It comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration. The ruler slides easily over the fabric until pressure is applied. Then, the exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts!