Squids 3387 Dual Band Arm ID/Badge Holder with zipper closure is designed for easy access and prevention of lost IDs and badges. Dual elastic band with hook-and-loop closures adjusts to fit a range of arm sizes or over bulky outwear. Large interior pocket keeps both IDs/badges and small items secure, such as keys, EZ passes and money. Large clear window is made with durable vinyl for protection and long-lasting use. This arm band holder fits most ID badges or access cards measuring 4.75" x 2.75". It is ideal for those who work in warehouses, distribution centers, material inventory on construction and steel sites, airports and grocery/personal shopping.