Creative Balloons Mfg. Inc. Kaleidoscope Emerald Green Round Foil Mylar Balloon, 18", Pack of 5 5 Fun, festive balloons per package Eye-catching balloon measures 18 inches when inflated Top-quality balloon floats for 1 week with helium Self-sealing balloon valve seals itself during inflation Just attach ribbon and an 8-gram balloon weight for the perfect look