ISC 5-8" FLAME BLOCK by ISC Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $179.95 SKU KRP-056 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Stainless steel construction to be used with 5/8” rope. Loosen knob to insert eye of your sling or of your workline. Rounded edges to reduce rope wear.MBS: 100kN (22,500 lbs)