What is this Screen lock

What is this?
What the hell is this? The colorful color lines are coming to your phone screen again! Tap it!
Unique creative screen-locker! I will never tell you what it is!
Slide up the lines to unlock!
The second release of Color Series is coming!

Screen lock、Beautify、Theme、Personalized

Is your phone’s screen-locker special?
Is it interesting?
Are you bored with the system screen-locker of your phone?
Download Joy Lock! It is your best choice!

Features
1. We update screen-locker apps here every day.
2. About nature, anime, beauties, and so on. You will find yours!
3. Quick and convenient function of sidebar allows you to get anything you want.
4. Game + screen-locker! Cool, right?
5. Gaudy ≠ electricity-consuming! It is power-saving!
6. Creative screen-unlocking methods!