"Product descriptionSize: 10*18cmColor: green, blue, blackMaterial: diving clothPackage content: 1pcs sports mobile phone arm bag1. COMFORTABLE AND ELASTIC LYCRA MATERIAL: Unlike other neoprene wristbands, our elastic wristband is made of high quality Lycra / Spandex material, which makes the wristbands more comfortable and elastic for your arm.2.LARGE CAPACITY: The phone bracelet has 2 large pockets. Size 10 cm wide and 18 cm long. This is big enough for cellphones of all sizes.3.WATER-RESISTANT AND SWEAT-PROOF: This holder for workout phones is made of high-quality Lycra material and is sweat-proof. If we run or exercise, we will surely sweat. With this arm phone holder, you don't need to worry that your phone or money, cards have been ruined by sweat 4.LIGHTWEIGHT AND COMFORTABLE: The running armband is made of high quality Lycra (Spandex) and weighs only 3 ounces. The super elastic property of spandex makes the arm phone holder very comfortable compared to bracelets made of other material.5.UNIVERSAL SIZE: The phone bracelet has two Velcro fasteners that offer you the greatest possible flexibility. From 15cm to 40cm, you can easily adjust the clasp to find your best fit "