These silver mylar foil balloon backdrops are perfect for any celebration! You will receive 4 mylar foil backdrops total (2 packages - each containing 2 backdrops). Tape them to a wall to use as a fun backdrop to enhance photo ops, create a focal area of the party or highlight a fun feature. You can use them alongside each other to create a large backdrop or use them separately around your party room. Each backdrop measures 42 inches long by 23.5 inches wide with a 3 inch depth when inflated. They are made of silver mylar foil. Easily assemble with a handheld pump, NOT included, to create a backdrop in an instant!