Squeeze top opening system, easy to open & close and convenient, you just need to squeeze the frame together on both sides, it won't take up too much space in your bag or car. The case not only can be used as glasses pouch, but also can be used for phones, extra phone charger and cable, make-up, pencils and other accessories. Bright colors make them easy to spot in dark places or inside a bag. You can choose from the many options. All products are offered with a 100% money back guarantee.