Factory provide google cardboard with big 37mm lens works with any phone

Features:

1. 2015 Google inspired design Google Cardboard V2
2. Works for iphone and android phones
3. Standard big 37mm Bi-Convex Lenses (standard lens 25mm for option)
4. Conductive button
5. Suitable for max phone width: 83 mm (6" phone)
6. High quality cardboard paper.
7. Box-style package with good portability