This lanyard is made of polyester. The clasp at the end of the rope is metal and can be used to hang ID cards, keys, mobile phones, transportation cards. The design of the two metal clasps makes the hanging items more stable and not easy to flip and entangle. It is suitable for campuses, factories, companies, trade fairs and daily commuting. The inner size of the badge holder is 3 3/8" L× 2 1/8" W. The size of the lanyard is 35 1/2" L × 5/8" W. Includes full printing on the lanyard.