The DIY ScienceRUs Cardboard VR mobile phone 3D glasses headset, instantaneously transforms your Smartphone into a VR headset. Android OS： search "Cardboard" in Google Play (needs Android 4.1+). IOS OS:search "Cardboard" in App Store. Type: Unassembled DIY Cardboard Kit, 1~2 minutes assembly. Material:Cardboard + Resin Lens. Compatibility:iPhone, Samsung Phones, Google Nexus 4/ 5/ 6, HTC One, Xiaomi Mi3 and other brand phones with 3.5-6 inch screen. Color:Box color, as shown in the picture.