INTERCHANGEABLE NEEDLES: The ultimate in knitting versatility, this Knit Picks Interchangeable Needle set allows you to easily create dozens of different needle combinations so you can knit all types of projects including socks, sweaters, hats and more! INCLUDED: Set includes 9 pairs of 4.75" long interchangeable wood needle tips in US sizes 4-11 (3.5mm - 8mm), 4 green cables (2 each in 24" and 32" lengths)(sizing of the interchangeable cables refers to the total length achieved when the needle tips are attached to the cables), 8 green end caps, 1 cable connector and 2 metal tightening keys CONVENIENT CARRYING CASE: A flexible 9" x 5.5" vinyl