Swing side snatch block (stainless steel) - The swing-side snatch block features a lightweight 4'' diameter deep groove aluminum sheave, with stainless steel plates that swing open to install rope. Sintered bronze bushing on stainless steel shaft provides 98% efficiency. Particularly useful for use when doubling the line, the rope cannot accidentally come out of the block. Use the steel locking carabiners or shackles to anchor to a polyester sling.