(Caution These are NOT mouth Reeds. RT-REEDS are replacement reeds for Thunder Bugles) RT-Green Double has 2 layers of green latex with white Plastic horse shoe, this Reed is designed to get a Medium bull sounds with excited bull tone range. RT- Reeds come in a Two Pack! The Thunder Bugle Black single RT- Reed Consist of 1 thick layer of latex, this Reed is designed to get a Medium to larger bull sounds with excited bull tone rangeRT- Reeds come in a Two Pack! RT-White Single thin Replacement Reeds (2 pack)The Thunder Bugle White single RT- Reed Consist of 1 thin layer of latex, this Reed is designed to get a small to Medium bull sounds with excited bull tone range. RT- Reeds come in a Two Pack! The Thunder Bugle Red Triple RT-Reed Consist of 3 layers of latex, this Reed is designed to get deeper sounds with more volume and tone range. RT- Reeds come in a Two Pack.