Here is a handy design for a knot reference! Waterproof plastic cards mean you can take this little reference (just 2 1/4 x 3 1/2) with you hiking, camping, etc.and not worry about it getting wet! Six cards are attached together in corner with a brass grommet. 17 essential knots cover most any rope tying situation: Bowline, Square Knot, Water Knot Rolling Hitch, Sheet Bend (Doubled Sheet Bend too), Trucker's Hitch, Mooring Hitch, Tautline Hitch, Clove Hitch, Buntline Hitch, Constrictor Knot, Double Fisherman's, Figure Eight Follow Through, Prusik, Butterfly Knot, Half Hitch and the Bowline on a Bight. A set of these PRO-KNOT cards belong in the glove box of everyone's car or truck!

Note that the Outdoor Knot cards, Paddling Knot cards and Boating Knot cards all contain the same 17 knots.