B-Safe Professional Roofers Kit BK061015PROB Safe Professional Roofers Kit. Safety Features: Kernmantle rope fitted with high strength rope grab and snap hook provides positive location and free movement 2m heavy duty adjustable energy absorber prevents loads exceeding 6kN Harness with load indicator and suspension trauma straps are included providing the ability to give protection to the user when deployed after a fall Adjustable Shock Absorbing Lanyard is rated to 50kg 140kg to protect lower