The bracelet is made of sicone and fluorescent liquid. It will glow in the dark after you put them in the light, so cool! It's suitable for concerts, holiday parties, bar parties, annual celebrations, night entertainment venues fans and more. Customizable fluorescence bands are a smart way to promote your message, cause, occasion , event, team, or company! Custom logo is welcomed! Put your brand ahead of your competitors with this LED Slap Bracelet! The color can be customized according PMS when the qty reaches 100pcs. Price for over 50000 pcs is for sea shipment. We are always waiting for you!