Keep your Firefly wind-detection device securely attached to you and easy to access with Fireflys Retractable Lanyard Pack. 36 retractable nylon-coated steel cable has a 60-lb. break strength. Ultratough impact-resistant plastic case. Quick-connect system for quick and easy attachment and removal. 1.5H x 2W x 0.6D. Type: Wind Detectors.