Durable materials: our ID badge reels are made of high-quality ABS shell. high-strength nylon fish thread and 30 inch extension to make it easier for you to use your ID card. No twist: our retractable badge clip has a unique no twist structure. which ensures that your ID card will not be turned over at will and will always be on the side you need to show Multi direction rotation: alligator clip reel-360 Swivel clip makes your retractable key holder extend smoothly no matter up. down. left or right.This name card retractable badge holder reel suitable for hospitals. schools. offices. factories. seminars. company activities. safety maintenance etc. Stainless Steel Spring:The built-in stainless steel spring is used to replace the black carbon steel spring commonly used in the market. which improves the elasticity and toughness and ensures the expansion life of 50000 +. Pay attention to the longest dimension when stretching. If you stretch longer than the longest. the toughness of the inner spring will be damaged and the rope will not rebound. So the wrong way to use them will damage them! Perfect packaging: every process should be done carefully. each badge holder should be packed in plastic bags separately. and finally Put them in beautiful boxes to provide maximum protection and reduce damage during transportation.