Go-Glow Light Up Bowknot Hair Ties With Controller (Built-In Battery)

[{"content":"Body: 100% Nylon\r\nLuminous Fabric: 100% Polyester \r\n1. Blending special luminous fibers with traditonal yarn\r\n2. Connected to high-performance LEDs\r\n3. Light emitted through luminous fibers\r\n4. Flexible & soft","en_title":"Fabric","title":"Fabric"},{"content":"Easy to clean with washing machine: \r\n1. Wash inside out (