Excel Blades Pounce Wheels are 100% Made in the USA with an aluminium handle and interchangeable hardened steel serrated tracing wheel head, and can be used for tracing lines on paper, cardboard, foam, fabric, soft metals, and more. It's the perfect perforated cutter for hobby, arts and crafts, sewing supplies and industrial uses. Used for tracing, pattern making, marking, quilting, sewing, wood working and other transferring applications. The versatile head can be locked for straight line work or loose to allow for circles or curved designs.