Dyneema® fibre and polyester web lifeline reduces overall weight and the retractable design helps provide freedom of movement. Impact-resistant housing made of tough thermoplastic housing designed to help withstand demanding worksites. Speed-sensing brake system provides as low as 6 ft. (2m) of required fall clearance. High-capacity external energy absorber designed for users (and tools) up to 420 lbs. (190kg). Snap hook. 20'.