Our favorite cable needles are those which feel the closest to seamlessly knitting from the project needle. This three-piece cable needle set from KA are the perfect length, just long enough to avoid stitches from a large cable pattern from slipping off the end, and short enough so they naturally move to the back and front of the work.
Small needle: heavy fingering - DK weight yarn; 3.75" long
Medium needle: DK - Aran weight yarn; 4" long
Large needle: Aran - Super Bulky weight yarn; 4.5" long