Bachelorette Party Decorations Heart & Round Foil Balloons (Set Of 5 Pcs) Create the perfect bachelorette party atmosphere with these heart & round foil balloons! Each set comes with five vibrant and high-quality balloons, adding an extra touch of fun and glam to the celebration. Make your bride-to-be feel special with these festive decorations. Floating Time (Helium)The foil balloons, filled with helium, will stay full for 2-5 days. They may float for longer but will start to appear more deflated as they lose helium.