This is yarn purchased from Keito Zakka Stores. Since it's cotton yarn, you can use it year-round, and it's also resistant to heat, making it perfect for making small items like pot mats. I've also re-wound the used yarn onto bobbins and included them in the set. There might be knots connecting pieces of yarn in some of them. I cannot measure the length, but I have written the weight in the image. I've crocheted one row of single crochet with a size 7 crochet hook. I will not sell them individually. Please purchase as a set. Please understand that these have been stored at home.