Made of hard plastic and sturdy retractable cord, these badge reels are durable, safe, anti-lost, up to 23.6in(60cm) of retractable cord, allowing you to swipe or ID card without removing it. The back hook is easy to fasten hang, you can use it with the clip on belt buckles, lanyards, backpacks and other portable bags. Suitable for school staff, nurse, cruse, carabiner, sporting events, cruises, golf outings, fishing trips, skiing etc.