150g, 68mm/2.68 inch These stage juggling Balls are brightly illuminated with an LED and available in 4 sigle color(blue, green, white, red) , or color fading, or color strobing. The Poi Balls are made from a soft vinyl, Each Lighted LED Ball is powered by 3 button cell batteries. Simple operation with a small recessed switch, rotate clockwise or counterclockwise to turn on or off.