Additional Drilling Equipment - This Listing is for one 30027 Outer Ring roller for a Mark IV or Mark 5 Power tong for sucker rod. Each Tong Requires 2. OD: 1.75", ID 0.615 Thickness" 1.06" See my other auctions for Jaws. There are 4 styles of Outer ring rollers in production. Make sure this is the correct one before ordering. May fit following models BJ - Cavins Sucker Rod Tongs BJ Mark 2BJ Mark 4BJ Mark 5BJ Mark 5.5BJ Mark 7.5 Carter Tool27841-2X27841-4X27841-5X27841-5.5X27841-7.5X WestCoM20M40M50M75 Weatherford - Oil CountryM20M40M50M75 Tillery and ParksTP98 Mark IVTP98 Mark V Many Others. Location: Lubbock, Texas. For complete listing information please select the Click To Bid button to see this item on eBay.