【EASY TO USE】Both ends are crochet hooks ,and the middle is a plastic transparent hollow tube .Colorful ABS plastic needles and soft plastic tubes are very safe and soft for your hands ,which can meet the needs of long term work 【SMOOTH AND COMFORTABLE】The knitting needles are smooth ,thick and thin threads can be crocheted ,new material handles ,safe and not tied ,complete specifications ,good feel ,no electrostatic reaction ,so that the fabric is dense and tight 【PRACTICAL】You can use circular knitting needles to knit the products you want ,not only to make unique crafts ,but also to enhance your creativity and practical ability ,and enjoy the great sense of accomplishment brought by the finished product 【DURABLE AND ENVIRONMENTALLY FRIENDLY】Circular knitting needles use new materials ,environmentally friendly and safe ,no chemical additives ,no chemical reaction ,hard material ,high density ,strong toughness ,strong and durable 【VARIOUS SIZES】Circular knitting needles include a variety of specifications to choose from ,including 3 . 5mm/ 4 . 0mm/ 4 . 5mm/ 5 . 0mm/ 5 . 5mm/ 6 . 0mm/ 6 . 5mm/ 7 . 0mm/ 8 . 0mm/ 9 . 0mm/ 10mm/ 12mm ,Can meet a variety of production needs .