PETZL - Swivel Open, Gated Swivel with Sealed Ball Bearings INTENDED USE: Can be attached to a wide range of products (pulleys, lanyards...) because of its large opening. TAKES WEIGHT OFF: Reduces bulk and weight of component systems. NO MORE TWISTING: Solves the twisting and tangling problems of ropes and lanyards in different situations. RELIABLE: Excellent performance and reliability due to maintenance-free sealed ball bearings. WEIGHT: The SWIVEL OPEN weighs 130 grams.