Low Friction Ring - 16mm HoleLow Friction rings can be used as a lightweight alternative to a block in some applications. They are best suited for systems requiring relatively small line deflection angles, or for high static loads. The design achieves a nicely rounded internal profile for smooth control line trim under load, and a deep external groove to retain the rope securely within the large shoulders when spliced into a loop. Features: Compact & lightweight Low friction Large shoulder secure allowing for rope lashing Durable Simple & reliable design Low maintenance Specifications: Color: Black Box Dimensions: 1"H x 2"W x 4"L WT: 0.1 lbs UPC: 9316800520152 .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }