Review (4/5): Useful and nice colors, not colorfast
These are lovely vibrant colors and the elastic was perfect for fabric masks. They can be tied once to fit and then stretch to allow the mask to be put on. Be aware though, they are *not* colorfast. They will leach color when washed. This can be solved by soaking them in diluted vinegar and some salt prior to use. Instructions for using vinegar in this way can easily be found online.