Google Cardboard, GMYLE 3D VR Viewer Virtual Reality DIY Headset Glasses 45mm Focal Length for 4" to 6.2" Smartphones Precisely positioned mechanical reliable magnetic button works perfectly with almost all smartphones in market including the latest iPhone 6S, 6S Plus, Samsung Galaxy S7, Note 5, HTC M10, LG G5 and more (up to 6.2" smartphones) Advanced and perfectly engineered ergonomics for maximum comfort and superb VR experience. Larger 37mm High-Grade Asymmetrical (ASPHERICAL 45mm focal length) lenses engineered to be purely Aspherical for a larger field of view and higher degree of immersion of Virtual Reality without any compromises. (37mm in diameter vs the typical 25mm) Proprietary *Phone Lifter* wooden adaptors that allow fitting for any sized phone and positioning the phone almost exactly in the center of the cardboard, regardless of its size. Pre-installed lens, magnets and cardboard for easy assembling, the Cardboard viewer can be assembled in seconds.