2PCS Ultra-thin Nano-proof membrane film Screen Protector for Sony PlayStation VR cover [NOT Tempered GLASS]

someone don't know what's the Nano Explosion-proof film ? 

say it is only a film, if you think as this,you are wrong,

it is a Soft film,but it don't like a normal film,this is Nano Explosion-proof film.Never broken,it is better than Tempered Glass,

it is The latest nano technology, use the latest nano materials---which is with a strong impact resistance,

Never broken,it can protect your phone screen very well.