Purl Strings are reusable silicone cords that can be used in place of scrap yarn when knitting. These cords are hollow, so you can slide one end of the cord over your needle tip (up to needle size 9), slide your stiches onto the cord, and remove the needles. You can move the stitches back onto your needles the same way when you are ready. All of these cords are brightly colored, so you will be able to easily see the cord and the individual stitches. 

This Sweater+ Pack has 3 cords in it, 1 is 2.5 meters long for the body of your sweater and the other 2 pieces are 1 meter long for the sweater arms or for use when making children's sweaters. All 3 cords come in a metal tin.