Calling them rubber bands on steroids would be figuratively accurate (and obviously sounds cool), but what Ranger Bands really are are big ol' cut hunks of bicycle tubes*. Thick and strong like my...hands...these military grade securing tools are said to have 101 uses (literally, not figuratively this time) due to their natural resistance to heat, UV rays, and salt water. Secure your gear tins shut, keep your ropes wound, bind EDC items together, or affix a flashlight to your rifle barrel in a pinch. They'll even burn for a few minutes when you find yourself in need of a fire starter.
This set includes 24 Ranger Bands, all cut on a jig, and varying slightly in diameter from 1" to 1-1/8", and in width from 1/2" to 3/4".
*Yeah dude, you could totally go buy some bicycle tubes and cut them yourself. So if you'd rather do that, do it. Do it.