Review on 📱 2Pack Phone Card Holder - Elastic Lycra Stick on Wallet with Double Pockets - Credit Card ID Case, Pouch Sleeve - 3M Adhesive Sticker for Back of iPhone, Android Smartphone (Black & Purple Marble Double Pocket) by Dave Hock

I was afraid to use the card holder on my phone because I thought my cards would slip out. No way! They are amazing, they hold tight, my cards have never slipped and now I can't go back. I hardly carry a bag anymore! It's brilliant! I will say that they don't stick to any kind of case. not at all the fault of the product. Some bags are treated with anti-slip, etc., and the bags do not stick. I've ordered them several times (because I love changing cases!) and have never been disappointed.