This hot sale light up balloon is made from of 3.2G super thick latex & enviromental protection PP material. It will light up and last for 12 or even 48 hours while blow in the air and visible at night. The luminous colors are monochrome green, blue, yellow, white, purple and multicolor flashing. 10000pcs we can be customized heart. Custom logo is available and 20000PSC or more can go to sea price more favorable.