A perforated cutter for tracing and transferring patterns. Perfect for gilders, signwriters and carvers who need to transfer designs to a surface. The steel serrated tracing wheel head is perfect for use on paper, cardboard, foam and more. This pounce wheel features a locking swivel mechanism. The wheel is lockable, allowing for control when doing straight lines. You can also leave the wheel unlocked for tracing curves. This wheel is 5⁄16" in size with 18 teeth per inch.