The Miller SofStop 18 in. shock absorber pack includes a corrosion-resistant D-ring and snap hook to connect to a web or rope lanyard to help ensure maximum fall arrest protection. This unit helps to extend the range of some Miller SRLs by increasing the total weight capacity. See individual SRL instructions for use. A handy accessory for our utility, construction, and confined space customers, the SofStop has inertia brakes that immediately engage in the event of a fall.