FitSand Virtual Reality VR Mobile Phone 3D Video Glasses 3D Movies Games with Resin Lens for 3.5 to 5.6 inch Smartphones Google Cardboard 1. The 3D Glasses is made of ABS and spherical resin lens materials without stimulation plastic sheet that is environmentally friendly, fully enclosed designed; 2. Head girth adjustable; 3. Suitable for 3.5~5.6 inch screen mobile phone; 4. Secret images, other people can not see anything except to the wearer himself; 5. Convenient to use: can watch at anytime anywhere whether sitting, lying or standing;