Fast and clever, this kit includes the main circular knitting needle sizes. Interchangeable: you just have to change the tips or the cable to choose the desired size! All the needles are made of ultra-light metal which has the advantage of slipping without hanging. This kit contains:- 8 pairs of knitting needles circular : 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 7.0 mm and 8.0 mm - Size: 10 cm long. - 4 Swivel swivel black cables: 2x 40 cm and 2 x 50 cm. - 8 tips.- 4 Serre-cables. How do it work? 1/ I choose the length of the cable and the size of my needles. 2/ I screw my needles at the ends of the cable. In use of knitpro knitpro needles