This idea of the rubber band is to toss them after each tattoo, but we noticed that these kind (we tried dozens of style) keep their shape, ointment and madacide resistant, tension and worked the best. I'm sure other rubber bands can work as good. Just feel free to buy what suits you best. My main business are machines not rubber bands :) just a convenience that if you happen to need them and want them with your order they are on the site ready to go.
Feel free to order them from any other sites if you can save a 15% or more or by switching to Geico :D
On a side note. Anyone received the Forum promo machine yet?