VR Glasses, SainSonic VR -07, Immersive 3D Effect and Panoramic Games Experience with One-click Adjustable PD, OD and FD for 4.0-6.0 Inch Smartphones - Black Wide Compatibility - Perfectly fits iPhones, Android phones, and Windows phones with a screen size within 4.0 - 6.0 inches (remove the EVA mat if the phone's size is larger than 5.0 inch) High Quality Product Materials - Made of ABS and import PMMA, it is durable for long term use One-click Adjustable Pupil Distance (PD), Objective Distance (OD) and Focal Distance (FD) - It is convenient for user with myopia problem and meets the need of different groups of people to get the best watching experience Ergonomic Head Belt Design - Ergonomic design makes a balanced stress condition in three points on the head (concentrated on the forehead), reducing 30% pressure to the eyes Practical Design - EVA mat, EVA block and elastic sponge pad help protect your phones; premium leather face is more elastic, non-sweat-absorbent, comfortable and sanitary