SUPOW(TM) Multi-functional Portable Waterproof Sport Armbands Cellphone Case Arm Bag Wallet for Outdoor Cycling Sport Running Climbing Product size: wide 10cm *high 17.5cm* thick 3.5cm Wrap the band around your arm or wrist and secure the adjustable strap Using high-grade waterproof diving material, have the effect of waterproof, shockproof, high elasticity. Pocket design, more convenient in mobile phones, MP3, keys, money, etc., provides convenience for your articles carried by the morning exercise. Suit for outdoor sports, the gym, go out, shopping, or when the weather is hot, discard those heavy package, take a small me, wherever he can follow one's inclinations.