Knitting needles set includes: 9 pairs of interchangeable knitting needles (3.5mm, 3.75mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 7mm, 8mm), 4 flexible metal cables (40cm/15.75inch, 60cm/23.62inch, 80cm/31.50inch, 100cm/39.37inch lengths), 4 end caps, 2 cable connectors, 2 tightening keys,3 mini crochet hooks (3mm, 4mm, 5mm) The square knitting needles are ergonomic designed, anti-slip and effortless, making the process of long-term knitting more effortless and comfortable. They are particularly suitable for knitters who experience hand fatigue, have weak hand strength, or have joint problems. The square needle handle won't roll around randomly o