I have 2 Minelab coils for the Etrac, Safari or Explorers that I have no use for. One is the Minelab FBS 800 (7 1/4") and the Nel Sharpshooter 5.5" x 9.5" The Sharpshooter has a straight cord on it for some reason, measures 48" long. I guess if you have an X-1 probe the coil could work on your machine or if you have a custom chest mount. I'd sell the both for $60 shipped. I can be contacted at dign4au2@yahoo.com