This is a set of two authentic NIKE "ARM BAND PLUS" armbands. These armbands are designed to hold smartphones or music players securely on your arm during running or training. They are made with stretchy and breathable materials for a comfortable fit. The adjustable strap accommodates various arm sizes. The clear window allows for touchscreen operation, making them convenient to use during exercise. * Size: Approximately 7.2cm wide x 15.5cm high (per armband) * Compatible Devices: Smartphones up to 6.7-inch screen size * Materials: Polyester, Neoprene, TPU, etc. * Color: Black * Quantity: Set of 2 Brand new, unused, and authentic.