100% brand new and high quality Quantity: 2 pcs Material: Non-toxic Silicone Color: Transparent Overall Size: Approx. 6x3.5x1.1cm (LxWxH) Fixing Groove Size: Approx. 2.5x1.3x1.1cm (LxWxH) Color of LED Light: Red, Green, Yellow and Blue Made of a clear, soft silicone, each flashing mouth piece brilliantly flashes multi-color lights Completely sealed for personal safety, Blinks in alternating Colors, Hand-washable, disposable toy, cannot change the electronic How to Use It: 1. Downward the groove, put the mouthpiece on your lower teeth 2. Bite the piece, and press the button with your tongue to turn on/off Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package included: 12 pcs x LED Flash Light Mouth Guard Piece 4 Colors Party Glowing Tooth Toy