2 Pockets and 1 Zipper Closure There is a zippered pocket on one side of the running phone holder, and a non zipper pocket on the other side. The pockets can be used to store mobile phones, and store small items such as headphones, keys, credit cards, etc. Fit Most Cellphones and Wrists The size of the workout phone holders is 10x15cm (3.9x5.9 in), about a quarter of A4 paper in size. They are stretchy, suitable for wearing on wrists, and mobile phones within 8.5x15cm(3.3x5.9in). Please note that they are for wrists, not for arms. Lightweight and Breathable The wrist cell phone holders are made of high grade polyester fabric, can effectively absorb sweat and dry quickly, giving you cool and enjoyable feelings while exercising. 3 Different Colors You will get 3 different colors of wrist pockets to use and replace (black, blue and red), and you can also match the wrist bags according to your clothes, making you look more stylish when exercising and traveling. Easy to Clean and Fast Drying These running key holder wrist bags are easy to clean, machine washable and dry fast. They are very light and compact, making them easy to wear on wrists or carry in a bag.