Wide Glow Bracelets contain a non-toxic, glow-in-the-dark chemical that illuminates once activated. To activate, simply bend the bracelet until you hear it crack. This will release the chemical from within the glow bracelet and it will immediately start to GLOW! Each Bracelet is 8 inches in length and attaches using the provided connectors. Dimensions: Length: 8.0 in. Width: 0.5 in. Batteries: Batteries are not required for this product. Packaging: 1 piece individually wrapped. Also available in a 48 piece display box and in any quantity above. The connectors are in a separate poly bag. 288 pieces per carton.