Our Purple LED Necklaces look great day or night! Each LED necklace features purple LED fiber optics throughout. Click the on/off button to choose from 4 exciting flashing light functions. Our Purple LED Necklace opens, closes and can 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 colors for school spirit activities and Halloween costumes, too! If your color scheme is purple this purple flashing neon necklace is perfect for your attire and decorative needs. 3 AG13 batteries are included and installed and can be replaced.