Unfortunately when I received my balloons for my sons bday party they looked as if they were filled with helium a week prior. I couldn't pick them up myself and the person picking them up didn't realize they looked bad. The balloons were pick up at 1230 they didn't even make it through the party which started at 200 the same day. My sons guest had to hold up the balloons in the pictures we took so that they could be seen in the pictures otherwise they were nearly on the floor. Disappointed.... I purchased the same balloons last year and they lasted over a week.