The tracing wheel is used for easy pattern tracing. The teeth create crisp and clearly defined holes. It can also be used with tracing paper to transfer darts or sewing lines onto your fabric. This high-quality tracing wheel with a solid wood handle is constructed with superior craftsmanship in Japan. It is 5.5″ or 14cm in length and has an ergonomically designed metal shaft for ease of use. The riveted wheel has longer teeth compared to other tracing wheels on the market. A clear plastic cover is provided.