1.What is the polymer?
The newest material of power bank battery， it makes the power bank more thin but enough capacity.
Other ordinary battery exist the safety problem， and it can not really arrive up more than 20000mah.
The item online write more than 20000mAh
almost is the fake capacity， if you don\'t believe， you can test your power bank with ours.
The polymer battery can be enviromental protecting and thin， safe.
2.Did you still using the cheap kinds of power bank like you search online，
without any brand， or the brand everyone used?
Oh， no. You should have your own style !! And the cheap product is come with the safety problem.
3.Fashion，Metal Color， Elegant， Real Capacity，Safety， Quality， Stylish
all this in one product， so what do you wait~
4.Rock is the advanced and newest brand of produce power bank in China.
we have the safety promise， and the best material of making power bank.
Please trust us， pay attention to our details.
Package Included: 1* Rock Stone Power Bank
(Color: Champagne，Gray， White/Silver. Please tell us the color you need， or it will be send at random.
Thank you for understanding.)
