... weight: 0.028kg/pcLight source: 4* LEDPower supply: 3* LR44 battery(included)Color of body: transparent, blue, green, pinkBattery life time ... 12-24 hours. The battery is replaceable.(we also supply the battery, if you want to purchase extra battery please find the link ... are the buyer's responsibility. glow stick, 8.5", Plastic tube 4*LED 3*LR44 battery, 7 functions for party and children