Phone Card Holder,Cell Phone Adhesive Stick on Wallet with Button Sticky on The Phone/Case Back for iPhone,Samsung,LG,Motorola,HTC (Mist Grey);

About the Material Silicone (From Wikipedia)
Low chemical reactivity
Low toxicity
The ability to repel water and form watertight seals.
Does not support microbiological growth.
Resistance to oxygen, ozone, and ultraviolet (UV) light.
As a low-taint, non-toxic material, silicone can be used where contact with food is required.
Silicone is widely used in medicine, and other applications requiring high bio-compatibility
No "marked harmful effects on organisms in the environment" have been noted for silicones. They biodegrade readily, a process that is accelerated by a variety of catalysts, including clays.

The Strengths of Sunnie Smart Wallet
>>No lint balls on silicone card holder VS other elastic fabric card holder will pill in daily use.
>>Unique technology applied on its surface processing make it uneasily get dusty
>>Well packaged,great gift for kids,friends.
>>Five Star after-sale service makes you deserve what you pay.

Sunnie Smart Wallet is designed and manufactured by Sunnie Tech
Say Goodbye to your wallet!
When you only want to carry the bare necessities with you, this smart stick-on wallet makes it possible.
3M adhesive backing sticks securely to the back of your cell phone.
The phone wallet holders can hold your credit card, driver's license,metro card,etc.
They are perfect for quick trips to the store, crowded concerts, gym visits, night bar.