Light up the night with our 22 inch assorted colors glow necklaces! They're a perfect accessory for a variety of costumes, and they make fun party favors for both children and adults. Each box includes 50 glow necklaces in a variety of bright colors. Dimensions: 22 inches long and 6 mm in diameter. Each necklace glows 1 time, for 8-12 hours, and comes with 1 connector (not pre-attached) . To activate the item, snap it and then shake it until it starts to glow. Sold by the box (50 necklaces and 50 connectors per box) .