Google Cardboard V2.0 Fully Assembled Virtual Reality 3D glasses for smartphone screens up to 6 inches. Note: Remove lense covers for optimal viewing. Easy to use Google Cardboard V2.0 Virtual Reality 3D glasses. Includes protective cardboard sleeve for storage of your 3D glasses. Works with most smartphones including iOS and Android platforms. Simply insert your phone as shown on the inside cover of the 3D glasses. Fun for everyone. Get apps and product safety information at: www.google.com/cardboard