Snap and shake the 55.9cm glow sticks and connect the ends with the 2.54cm connectors to form necklaces! Keep your slumber party or Halloween party glowing with these bright glow-in-the-dark necklaces. Kids will love fashioning these glow accessories in their favorite colors. Fun for everything from nighttime backyard play and pool parties to trick-or-treating on Halloween night. Plastic. (50 pcs. per unit) Simple assembly required.