Latex balloons stay fully inflated for up to 24 hours post-inflation. If you are looking for a longer inflation period, Mylar®/foil balloons typically stay inflated for up to five days.Add a dash of color to your party decorations with these balloons by Celebrate It. They are perfect for weddings, special occasions, events and gatherings or birthday, anniversary and graduation parties.Details:Includes assorted colors12"15 balloonsRubber