Glow sticks party pack - fun party favors glow in the dark! Adds amazing fun for night time activities.1.These foam light sticks brighten up the party scene with an electric display of glowing lights in red, blue and green colors. 1.Different modes. Includes multicolored fast flashing, slow flashing, and alternately flashing, suited for different moods and atmosphere.4.Easy to use, There is a simple on and off switch to activate the light up foam batons.1.Please pull out the insulation plastic sheet and then press the switch button, then foam glow sticks will work. 2.Keep pressing the button to cycle through the 3 modes then to off. 3.It does have small batteries, we don't recommend young children under 3. package: stick size: 1.6*16 inches(d*l) approx foam stick*12