Sewing tools can be classified into five categories: measuring tools, cutting tools, marking tools, drafting tools, and pinning/sewing tools. Measuring tools include tape measures, yardsticks, sewing gauges and rulers. Cutting tools involve scissors in various sizes for specific uses as well as seam rippers. Marking tools comprise tracing wheels, marking pens and tailor's chalk. Drafting tools are used for shaping patterns, such as L-squares, hip curves and French curves. Pinning and sewing tools contain needles, pins, pin cushions, thimbles and thread. All sewing tools require proper storage and care.