See our rubber band size chart to see which Alliance Rubber Company rubber bands fit your needs. read more
Custom Size Rubber Bands. In addition to the standard sizes above, Alliance can also produce other rubber band sizes to meet your custom requirements in regards to thickness, width, formulation and length. Contact Us for more information. read more
Some info here: Rubber band (wikipedia) Some commercial info & terminology here: Rubber Bands Size Chart It seems that they are generally measured at rest; the fully-stretched length is seldom specified, presumably because at that point a rubber band catastrophically ceases to be a band. read more