This knit polyester elastic is 7/16" wide (scant 1/2"). Knit elastic is great because it can be cut into narrower strips while retaining its strength. This width works well for elastic cuffs, necklines, and narrow waistbands. (You can also zigzag multiple lengths together to make a wider piece.)
Sold in 5 yard lengths. A quantity of 2 = 10 yards, 4 = 20 yards, and so on. Cuts will be in 10 yard lengths or longer.