This is probably the most widely-used and most sought after rigging field guide available. This handy guide covers the following: Basic Rigging Plan, Inspection of Slings and Hardware, Sling Capacities (chain and wire rope), Lifting Angles, Assorted Hardware Ratings (links, shackles, etc.) and Wire Rope Clips. This is not an exhaustive list, but these are some of the key components on this card. You really can't get a more compact, useful and well thought out rigging guide than this one!