Light Champion Snatch Block Tailboard Block #404 is for hoisting, lifting, pulling, or dragging.
It is often used on truck cranes and winches, and in the logging, mining, and construction industries.
The top pin connects to Lifting Slings, Chain, Hooks, Shackles, and other Rigging Hardware.
When suspended, the theoretical mechanical advantage increases to equal the number of lines going to the Snatch Tailboard Block.
Reducing friction will get the real mechanical advantage closer to the theoretical, as with any pulley system.
It is opens up to insert Wire Rope line easily, and gives the user a mechanical advantage when used as a traveling block.