Dritz tracing wheel, Smooth blade.

Tracing wheel. 5", (12.7 cm), Plastic Handle. 2 cm diam. smooth blade. Use with tracing paper to transfer pattern markings for darts, pleats, tucks, pockets and buttonholes to fabric. Will transfer markings through a double thickness of most fabrics. To mark multiple layers and bulky fabrics, you may prefer to use the serrated tracing wheel.