Come and see our amazing products. This cellphone arm holder is fit for any phone within 6.5 inches in length, can also accommodate a slim phone case. It is designed to be adjustable to fit arms with a circumference of from 8 to 16 inches. It can fit almost all arms tightly and is non-slip, which ensures your phone stay in place during the toughest workouts. Suitable for running, jogging, exercising and working out. Pls confirm with us about the packing info, stock color and exact production time before placing your order