the newest DIY cardboard version VR V2.0 VR box headset case Virtual reality 3d glasses with button

cardboard version 2.0 virtual reality vr 3D glasses for 3.5-6" Smart phone

Specifications:

1.Pre-cut cardboard as unibody design
2.Best materials for the cardboard
3.Control by the neodymium silver magnetic ring
4.or NFC tag for better performance if needed
5.Private 3D movies and 3D games experience
6.Carboard Glasses for iPhone and Android
7.Easy to assemble, need no more than 3 minutes under the double-sided printing instruction
8. 4.7 inch Cardboard suitable for phone up to 130mm long and 75mm wide.
9. 5.7 inch Cardboard suitable for phone up to 150mm long and 85mm wide.