The Mepps XD, in a just a few short years, has become the standard for comparison for fishermen who prefer spinners that run extra deep. Part of its success is due to Mepps quality, but fishermen are also finding out the XD catches a lot more fish. Mepps' unique body construction includes a fluorescent bead which gives the fisherman a major advantage. Fish not only see the spinner from the front, but from the side and rear as well. Mepps Color Technology has proven lure colors do not look the same in the water as they do out of the water. What you see in your hand is not what the fish sees.