Circle Window View Smart PU Leather Flip Battery Door Cover for Asus Zenfone 2 Front PU leather cover back plastic shell with PU leather cover Hollowed circle window view design Allows you to view time, battery status and caller ID etc. easily Support smart sleep / wake up function Replace your old, scratched and unusable battery housing with this case. Compatible with: Asus Zenfone 2 Package included: 1 x Circle Window View Smart Leather Flip Battery Door Cover for Asus Zenfone 2