Included 3 pcs black single music note, 3 pcs black double music note. Automatic sealing, pinch the mouth after inflating the balloon flat, the balloon comes viscose mouth sealed automatically. Made of high-quality aluminum foil, brightly colorful, and shiny. Perfect music theme party supplies, rock and roll party supplies, great for receptions, parties, catered presentations. Use for birthday party,outdoor party, home party, celebrations.