Boost your brand when you give out this water bottle to customers!EL Wire Shutters Glasses,fashion led product.Eco-friendly material,non-toxic, non-flammable,non-radioactive,pure warm light,romantic decoration.These novelty flashing style sunglasses are really cool,entire transparent frame,clear lens, charming led light,make you stand out at night.Flashing modes: constant on,slow flashing,quick flashing.Powered by 2 AA batteries(not includes).Use for bar,patty,festival,dancing hall.Customize with your company logo for a great brand publicity. Made from plastic material, measuring 6*5.4*2.3 inch, this custom custom led flashing shutter party glasses. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Portable, durable, practical for daily use.