These ultra-bright light sticks are made from pro-environment soft foam and high-quality plastic. Press the power button to switch between the 3 different light up modes, Quick flashing, Slow flashing, and Alternately flashing. Change the mode you like, enjoy foam sticks with a good mood when joining party with your friends. Comes in its own individual packaging, making them easy to distribute and store. Replaceable batteries are included and installed inside each foam stick, which have an On and Off switch function for saving battery life when not in use. Perfect for Christmas, Halloween, birthday parties, weddings, concerts, bar, sporting events, raves. 18 29/32"L x 1 37/64"Dian.