Nice choice: high-visibility security ID arm badge holders are ideal for employees in the security industry, including engineering security personnel, access control supervisors, emergency workers and more; According to the law, all front-line security personnel must display their license and these arm badge holders can always keeps the license displayed in an easily visible position Durable material: license arm badge holder is made of durable material, sturdy and waterproof; It has adjustable strap for various sizes of upper arms in order to improve comfort and ensure a firm fit and is strong enough to withstand numerous fittings on/ off the arm Time saving: armband card holder allows your ID card to be displayed clearly through a transparent visual window; If you need a security pass to see quickly and clearly, this holder is a good choice, which is so much easier than searching in wallets,handbags or cases High recognition: arm card holder is reflective, waterproof, easy to identify, and the card inside can be easily viewed; It matches other high visibility vests and coats, suitable for bodyguards, doormen, and emergency staff, security personnel, etc.; It is also good to fit a car park pass into, just wave your arm at the card reader, nice for motor bikers Package contains: you will received 2 pieces ID card arm badge holders in different colors, black and fluorescent green; Different colors can meet the needs of different occasions