Chain Grip 5/16"/8mmFeatures:Perfect to ensure a safe anchoring by easing the tension on the anchor chainProtects the boat by reducing the chafe of the chain on rub rail and roller chockPositioned between two links of the chain (single-handed operation)Optimized design to avoid accidental release of the chainOne-piece with nonmoving partsForged in Duplex stainless steel grade (increased mechanical & corrosion resistance)Applications:Mooring