MARTI MICHELL-Perfect Patchwork Templates: Multi-Size Kite Ruler. These templates are perfect for hand or machine piecers. Each laser-cut acrylic template features a perfect 1/4 inch seam allowance so you get specific-size pieces with no guessing! This set includes 1 tool for cutting 2 shapes in 4 sizes. Made in USA. WARNING: This product can contains chemicals including Poly(methyl methacrylate), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.