Buy yours here:
http://www.gearbest.com/screen-protectors/pp_447930.html?vip=918204
Different variant (cant comment on quality for this):
http://www.gearbest.com/screen-protectors/pp_602447.html?vip=918206
Screen protector not to buy:
https://www.youtube.com/watch?v=kiIibIDO2kU