Using your 4Ocean Deep Sea Beaded Bracelet is super easy. Just adjust it to fit your wrist as it can be sized from 7 to 13 inches (18 to 33 cm). Since it's waterproof, you can wear it while swimming or washing your hands. To make the cord glow, expose it to UV/blacklight for an hour or sunlight for a bit longer. When it comes to maintenance, just use a soft cloth to wipe it clean. Avoid using harsh chemicals as they might damage the bracelet's materials. Also, store it in a cool, dry place when not in use to keep it in good condition.