I went to buy some more red wool and came home with the wrong wool. I found there were so many shades of red to choose from. Now when I buy a new ball I cut a short piece off and tie it round the label. Now it's so easy to just take the band to shop for the right wool. It is handy to have the washing instructions to give with any knitted presents. There is a lot of useful information on the bands I hadn't noticed before !