Crosby A350L 1/2 Sliding Choker Hook w/Latch - New style incorporates throat opening equal to or larger than old style hooks. Each product has a Product Identification Code (PIC) for material traceability, along with a Working Load Limit, and the name Crosby or CG forged into it. All hooks incorporate Crosbys patented QUIC-CHECK deformation indicators to help in determining if throat opening dimension has changed. Each hook is equipped with a Crosby S-4320 heavy duty stamped latch with the high cycle, long life spring. Forged alloy steel, Quenched & Tempered.