Precise sizing for knitted socks: 32 cm (12.6 in) long, designed for knitters. Clear marks in both inches and centimeters allow quick, accurate measurement of foot length and sock length. Knitting gauge and compatibility: US needle sizes 0–15 and metric 0–10 mm; versatile for most knitting tasks and helps ensure correct needle size and gauge. Durable and smooth construction: Made from high-quality material that resists bending or breaking. Smooth surface protects hands during use. Measures sock length with a thickness of about 0.5 cm (0.2 in). Easy to use and reliable: Engraved scale is clear and easy to read; sturdy grip and reliable hold. A practical addition to your knitting tools for both beginners and experienced knitters; supports accurate sizing for efficient knitting. Use cases: - Before starting a sock project, measure the foot to choose the correct size. - While knitting, check needle size and gauge to maintain fit. - After finishing, verify finished sock length for consistency across pairs.