This magnetic phone strap is compatible for Stanley Quencher, IceFlow, Adventure tumblers, Ozark Trail, Simple Modern, Owala, reduce, YETI, and gym water bottles. It can free your hands while you are working, doing exercise in gym, going shopping, Cooking and so on. The magnet is very strong with a magnetic force and your phone will be hold completely steady. Don't break your phone accidentally! It's perfect for freeing your hands and holding your phone while working,exercising,shopping,outdoor activities. Custom logo is available.