1.How much wool does it take to knit sweaters, hats, scarves? You need 4 sweaters, 2 scarves, and 1 hat!2.What is the thickness and weight of the yarn? About 1mm,Weight is 100g+40g (±3)!3.How to achieve long hair effect? After knitting the clothes, wash them in the washing machine for 60-90 minutes (too long will cause shrinkage, it is recommended to weave larger when knitting)4.Is there any color difference between the yarn and the picture? Because everyone's electronic equipment brightness is not the same, there will be a point of color difference, which is a normal phenomenon, if you mind, please do not buy!