Our flexible red plastic neon necklaces look great day or night! Made with red plastic each led necklace features red LED fiber optics throughout. Click the on/off button to choose from 4 exciting flashing light functions. Our radiant red led necklaces each open, close and attach to each other for a length of light rope. Use our fiber optic necklaces to decorate for parties, parades, floats, bars and more. Combine with other colors for school spirit activities and Halloween costumes, too! If your color scheme is red this red flashing neon necklace is perfect for your attire and decorative needs. 3 AG13 batteries are included and installed and can be replaced.