Premium Celebright LED Balloons - Changes Colors - Turns On and Off - Great for Parties and Birthdays - 5 Balloon Pack - LEDs with Bright Color Are Sure to Impress Turns on and off these ballons come with a small push button allowing you to turn the ballon on and off. This lets you use them anytime you want and makes it so they can be used on multiples occasions. The led light changes color the balloons are white, but the light inside changes color making the balloons into a rainbow of fun. Also if you wish, the balloon can be switched out for any other balloon of your choosing. One way air flow, no need to tie! You blow into the end to inflate like other balloons, but the special device doesn't let the air come back out. Saving you the hassle of tying each balloon. The light is reusable the batteries can be easily replaced and you can use these lights for any number of parties and gatherings. 5 per pack and we include a handy string with out balloons. This way it makes them easier to tie off or hold.