TEEFAN Plastic Magnet Function Adjustable Pupil Distance Google Cardboard 3D VR Virtual Reality Headset Game Movie Video Glasses for iPhone Samsung HTC Nexus LG with Full Amount Headband (Black) Light weight, durable and well made with quality material. Big size of lens to get wider FOV, you can get immersive 3d experience. The magnet works based on app, it helps to control the phone easily while the phone installed into the headset. Just place your phone in the removable tray, download any vr app (search "vr" on Google play for example), and you're good to go. The head strip fits snug and adjustable. It reduces the pressure on bridge of nose after using for a while. Screen size within 6.0 inch is available.