These are heavy-duty lanyards suitable use with portable radios and other equipment. They are made of 550 paracord and one-inch welded steel rings. The parachute cord has a breaking strength of 550 pounds (249 kilograms) and the steel rings are rated for 200 pounds (91 kilograms). These lanyards will last a long time outdoors and in other extreme environments. Cobra Knots are used to secure the cord to the steel ring. A miniature S-Biner is included for attaching smaller items or identification cards. These lanyards would be great to hold onto other valuable gear and to carry important items around the neck. Available colors include black, royal blue, navy blue, neon orange and silver gray. These handmade lanyards are shipped free via USPS First Class Mail in the United States.