These luminous bracelets are made of silicone and feature phosphor that stores energy when exposed to daylight, glowing naturally at night. They are non-toxic, wear-resistant, and skin-friendly, ensuring long-lasting use without irritation. Custom Pantone colors are available, and after adding glow-in-the-dark powder, the color will have 30% transparency of the original code. Simply place them near light for a few minutes to activate the glow. Lighter colors will glow more brightly. Available in five sizes, these bracelets are perfect for festivals, fitness events, night runs, concerts, bars, carnivals, and parties. You can customize them with screen printing, debossing, or embossing your logo for brand exposure at your next event.