Upper material: Our neck lanyards are made of soft and durable polyester fabric with oval metal swivel clasp. Very soft and comfortable. And they're wrinkle and crease resistant, so they always look perfectly professional. .Size: The width is approximately: 0.4inch (1cm), half length is about 17.7inch (45cm) (Note: 45cm refers to the length of the strap folded in half with the length of the lobster clasp below) designed to fit most people. .Wide Application: Ideal for schools, tours, events, cruises, small businesses and more. Convention to hold cell phones, cameras, USB drives, keys, keychains, license, ID badge holders, video games and other portable devices. .