Trumpet Air Horn Cover - 3-15/16" Diameter - 304 Stainless SteelThe Trumpet Horn Tube Cover fits all MaxBlast Trumpet Horns. Keeps green water and bugs from getting into the trumpet tube. Snaps over the end of the tube ? no tools required. Constructed of corrosion resistant stamped 304 stainless steel.*Includes one (1) Trumpet Air Horn Cover