Built on Rocky Mountain Hunting Call's wildly successful GTP frame, the Steven Chappell Signature Series Diaphragm Elk Call 3 pack now lets you make the absolute most aggressive challenge bugles to the softest cow calls. Features#D2 Elk Camp - Orange - This call a single latex that is designed specifically to reproduce a very accurate estrus cry of a cow elk. It will make a mew, chirp or whine.#H3 Tines Up - Red - A double latex call with a special notch cut in the latex so that it can produce an extra excitement in your cow calls. It also helps to make aggressive bugles.#E2 Royal Point - Blue - This call is a single latex that is for simply bugling to challenge a herd bull. You can make the absolute most aggressive challenge bugles with it.