Rubber bands on steroids! These bands are tougher and more resilient than any you have seen. What sets them apart is their composition; they are made out of double-thick EPDM rubber, and designed specifically for functioning in the outdoors. EPDM has a working temperature from -50 to 300 degrees, works well in water, and does not break down from exposure to sunlight the way regular rubber bands do. Simply put, they're the toughest rubber bands available. Whether attaching critical gear like tourniquets to packs or vests, or simply holding gear together, you'll come to think of Rocket Bands as your Go-To solution for a huge range of attachment applications. Assortment Includes: 4ea 1½" x ½" bands 3ea 3½" x ½" bands 3ea 3½ x ⅜" bands Weight: 0.7oz