This is an EXTRA SET of camera extenders.  All of our camera harnesses come with a set.  You would buy this item if you have more than one camera body or set of binoculars that you would like to use your Camera Harness with. 

Dual Harness Owners: The Extenders are the same as the Safety Straps for the Dual Harness.  So if you need a replacement set, or have extra cameras you wish to rig up to use with your dual harness, these are straps you are looking for.