Enjoy hours of knitting pleasure with Spin cables. Crafted from strong, durable nylon, the swivel cables possess smooth transitions & secure connections to keep stitches safe. Each cable has lifeline holes & comes with a tightening key. Simply screw needle onto cable, insert tightening key, give a firm twist & you are ready to knit! Cable Measurements Without Tips: 8in (20cm) - Makes a 16 Inch Circular with 4" Needle Tips 14in (35cm) - Makes a 24 Inch Circular with 5" Needle Tips 22in (55cm) - Makes a 32 Inch Circular with 5" Needle Tips 30in (75cm) - Makes a 40 Inch Circular with 5" Needle Tips 37in (93cm) - Makes a 47 Inch Circular with 5" Needle Tips 50in (125cm) - Makes a 60 Inch Circular with 5" Needle Tips SIZE NOTE: Products with SMALL joins are designated by the letter [S]. They are only compatible with other [S] ChiaoGoo products. Needle tips US 2-8 are [S] products. Products with LARGE joins are designated by the letter [L]. They are only compatible with other [L] ChiaoGoo products. Needle tips US 9-15 are [L] products IMPORTANT: The 5 inch tips are NOT intended to be used with the 8in cables.