Hot Grips model 123 -OPEN ENDS  3 wire snowmobile replacement grips 3 wires give you a high heat circuit, low heat circuit, and common ground wire. Must be epoxied on, epoxy not included but commonly found at Home Depot or Wal-Mart stores. Kit includes 2 grips, 3 position toggle switch, extra wire, installation instructions Distributors have trouble keeping this hot model in stock. Made in the USA by a manufacturer with 30 years experience in making heated grips. Photo doesn't show the bored out end, but it is 7/8" opening clear thru the grip from end to end. To see all 25 Hot Grips(R) we stock go to the Amazon.com link here: http://www.amazon.com/gp/aag/main?ie=UTF8&sshmPath=at-a-glance&isAmazonFulfilled=0&marketplaceID=ATVPDKIKX0DER&isCBA=&orderID=&asin=B006LNZSB6&seller=A16C35JVPPC42E&isPopup=