Features: Environmental friendly ABS plastic frame. Lightweight and portable design, you can take it anywhere you want. If you go to the theater frequently, taking this 3D glasses will give you private 3D experience instead of using the recycle one. 3D glasses don't need to be charged, free from signal and wave interference. Polarized lens to reduce glare and increase picture clarity. Note: 1. Please don't wear the glasses as sunglasses. These glasses don't protect your eyes from ultraviolet light. 2. Please don't clean the glasses with water or dishwasher, clean it by a dry cloth or ultraviolet sterilization machine.