Sport arm band for phone

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This has a Velcro strap for easy fastening to the arm and a plastic waterproof front. It also has a little slot to put your keys in when jogging or on a bike ride etc. It has a hole for your earphone cable to come out. Size wise - I'm not sure what phone it will work with! It definitely won't fit larger phones like iPhone 6 Plus. I think I used it with my standard iPhone 5 so that gives you an idea. It measures roughly 7cm by 12. But hey it's free so worth a try eh?