Lenses are way too small, it kills the product
I AM CARDBOARD® EVA Foam 45mm Focal Length Version Virtual Reality Viewer Inspired by google cardboard (WITH NFC) - Black (Wireless Phone Accessory) 1
The lenses are too small: Actually you peek through tiny holes. So What your eyes see is a hole, and Even the small things That keep the lenses in place. Compared to --other Such As the products one by LICK with much bigger lenses, it's really useless.
Also on my xperia Z3 the magnet Does Nothing at all, I have to use a separate magnet. Purpose that's probably not just Their fault and due to my device ....