The Prym "Mouse" Chalk Wheel is the perfect tool for freehand marking on any type of fabric. With its fine gear at the top, it leaves a fine, clearly visible chalk line that can be easily removed after the fabric has been sewn. Replacement chalk cartridges are available in white and yellow, and the ergonomic mouse housing ensures fatigue-free work. Measuring 49mm x 85mm in size, this chalk wheel is a handy, must-have tool for any seamstress or tailor. In addition, it has been awarded the Red Dot Design Award in 2010, which demonstrates its exceptional quality and design.