A Ludwig hoop clamp bass drum muffler. Ludwig |Rogers |Gretsch |Slingerland |Leedy |WFL |Kent. Shells |Lugs |Rods & Claws |Mounts |Strainers & Butt Plates. Wires |Snares |Toms |Drum Kits |Cymbals. Threads and joints are good, works as it should, has not been cleaned in any way.