space zipper lock screen

space zipper lock screen, outer space zipper screen lock for your phone.
hold the zipper and press down to unlock the screen or pull it up to lock the screen.
it's does not require any password or pin code to unlock your mobile phone.

features:
- simulate zipping and unzipping zipper.
- simulate lock of the phone.
- cute variety of outer space zippers.
- great as a game.
- full use for free.
- easy to use.