Google Cardboard Virtual Reality Headset

Have you ever heard of Google Cardboard? Well maybe you have heard of virtual reality and maybe you own a smart phone. Well if you do own a smart phone you can try virtual reality by buying one of these pieces of cardboard. No really.

Here's a video of it 

Have a look at the page (it's a link to eBay)

If you do buy one let me know what you think in the comments.