Black Armband Exercise Workout Case with Keyholder for Jogging fits Samsung Galaxy Grand Prime. For Arms up to 12 inches Big. Comes with Matching Stereo Earbuds and Aux Cord. Works with or without a cover on the phone, very stretchy. Armband up to 12 inch arms Great for Exercising and bicycling, jogging, running. Keyholder slot for running, touch screen works thru plastic front Perfect for Motorcycle Riders