NOTCH 1/2" RIGGING BLOCK The Notch 1/2" Rigging Block is a small sized lightweight arborist block accepts working lines up to 1/2” (13mm) diameter. Features & Benefits: 20 kN WLL / 100 kN MBS Hot forged aluminum side plates with rope friendly rounded cheeks... MSRP: Was: Now: $263.99 Add to Cart