Felt Buffs for polishing inner surfaces of rings, bracelets or other larger, hollow or concave shapes.  Video below shows how to use them! These large felt buffs have a threaded wooden end that screws onto tapered spindles on the Foredom’s M.BL Bench Lathe. Use with polishing compound to add luster to any metal or Carnauba Wax for use on wooden pieces. 7,000 RPM Max Speed