This stretchy arm pocket is a little larger. The front mesh pocket can fit the larger cell phones like iPhone 6 Plus. Hands-Free way to listen to your music/books while working out. Two back pockets for key, ID, money, credit card, gym pass. Mesh see-through, feel-through front can access phone functions. Stretches on and can't fall off. Wear on upper or lower arm (even leg to hold your wallet.) Wear wherever comfortable for you. Size approx: 4.5" x 6"