Our 22'' Green, Red & Blue Tri-Color Glow Necklaces are sold 50 necklaces per tube. Connectors are pre-attached to these glow necklaces to facilitate high-speed vending and for easy party giveaways. Simply crack & shake the Tri-Color Glow Necklaces for hours of glow-in-the-dark fun. *Please note: glow necklaces are very delicate. The product will activate and glow upon removal from packaging.