Glow in the Dark Decoration: our glowing balloons can be inflated for approximately up to 20 inches and keep the air not leak for up to 7 days; The clear LED bobo and brightness will make the party up Easy to Assemble: just fill these large balloons up with air or helium (do not inflate balloons with your mouth), string lights powered by 2 AA batteries (not included); The 8 inch balloon (deflated) can reach 20 inch when inflated Multiple Occasions: these light up balloons will light up your parties and celebrations, which can bring vibrant color to most fun occasion throughout the evening, suitable for indoor or outdoor events, birthday and wedding parties, Christmas celebrations, Halloween decorations Color of the light:E:Warm Color Colour:As Shown Material:Plastic Package Contents: 10 * Bobo Balloons 10 * LED light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.