This balloon is "EN-71-12" compliant, meaning no nasty nitrosamines. (Please note that balloon colours may not be exactly as they appear on the screen, due to the settings of each individual computer screens.) Warning: Balloons are not toys. Children can choke or suffocate on uninflated or ruptured balloons. Adult supervision is required at all times. Please ensure uninflated balloons are kept away from children and discard ruptured balloons immediately. Always dispose of latex balloons properly. Latex balloons are made of natural rubber latex and may cause allergic reactions. Environmental Care: Helium filled balloons should be tied securely to a balloon weight that will keep them from releasing into the air. Never releasing foil balloons into the air.