This addi Click extension cord pack includes multiple replacement cords in lenghts of 60 cm, 80 cm, 100 cm (approx. US 24, 32", 40"). This extra cord/extension pack features three cords and one extra connector. The cord sizes will allow one to create 24", 32" and 40" Clicks when Turbo or Natura tips are attached (Lace tips, being shorter in length, will yield a shorter Click needle). Sizes are listed in approximate US sizes -AND- exact metric sizes for your convenience. All addi knitting needles are manufactured to exact metric sizes. Please Note: Every addi product purchased from an Authorized addi Dealer comes with a Lifetime Warranty from any manufacturer's defect.