20’ retractable web, swivel top plastic housing, built in shock absorber, ¾” load indicator hook, ½” carabiner included. Blue housing. Min breaking strength 4500 lbs. Meets or exceeds ANSI Z359.14-2012. Class B. Key Features PHYSICAL PARAMETERS: Composite housing. Robust & durable plastic casing. Has swivel anchorage eye at anchorage end. Swivel steel snap hook with load indicator at attachment end (PN 144 as per ANSI Z359.12-2009; gate strength 3600 lbs.). LENGTH: 20′ WEBBING: Material: PolyesterWidth: 1”Minimum Breaking Strength: 4500 lbs. VITAL TEST COMPLIANCE: Static Strength: 3000 lbs. for 1 minute.Dynamic Strength: 300 lbs. mass subjected to a 4’ free fall. SRD lock and remain lock until released.Dynamic Performance: 282 lbs. mass subjected to a zero free fall with extension of 36” lifeline. Braking force less than 1800 lbs. Average braking force less than 900 lbs. and arrest distance less than 54”. WEIGHT: 5.42 lbs. ± 0.02 lbs.