Whether used in a rescue haul system, helicopter operations, or rope access, the addition of a swivel can help prevent system lines from wrapping around each other, while at the same time reducing spin caused by loading a free-hanging rope Technical Specifications 3 Sigman MBS36 kNLength3.75 in (95 mm)Weight125 g (4.4 oz)Color(s)Sand / Blue Certifications NFPA G