OliaDesign Flashing LED Bubble Bracelet - 12 pack The latest in flashing light up jewelry! Fun and easy to activate; Multicolor Flashing Barrette The batteries could be replaced. And 1 sets battery Lasts over 6-12 hours Ideal for holidays, birthday parties, night activities and carnivals Non-toxic and safe for children Ships from Amazon Warehouse, Usually arrive in 2-3 days