Checkmate Xcalibre Self-Retracting Lifelines range from 25 to 130 feet, with user ratings on the Xcalibre SRLs at 130 to 310 pounds. All SRLs have a dual-acting carabiner as the top connector and a swivel-indicating aluminum carabiner as the bottom connector, and feature swivel hooks with fall indicators that clearly show if the device has been subjected to a shock load. All of the new SRLs have a brake module that is sealed with O-rings, which keeps out water and dust to maintain brake efficiency.
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