Versatile Function: Use this handy tool to check stitches as well as knitting and crochet rules. Perfect knitting and crocheting, can be used for knitting, crocheting and other types of sewing. Versatile, suitable for measuring needle size, calculation and counting frame. Safe and Nontoxic: Made of environmentally protection acrylic material, safe, nontoxic, sturdy and durable, and has long service life. According to your length preference, you can use the length converter to measure exact number of stitches. Perfect Gift: Family and friends will love this knitting converter. Practical to use. Item Size: Length and width 11.5cm, thickness 3mm. Suitable for household use, patchwork, embroidery, clothing design, teaching, etc. Easy to Use: Just place it on fabric to measure how many yarns are still needed. You can also use it to measure the required needle.