Zing double point needles, how cool, these ones have 5 needles not 4. Actually my first foray into sock knitting when I bought the shop in 2009 saw me consider that all sets should indeed be 5, ... how handy. They are available in 2 different lengths, made from superior grade light weight metal and each size has its own colour to help you find them quickly, 8.00mm Emerald.