Fits standard 1/8 in and 1/4 in pegboard. Includes multi-tool holder rack, 4 in double arm hook organizer jars, parts trays, 6 in shelf brackets, 4 in double prong straight hooks, pliers holders, 2 in double prong straight hooks; 1-1/2 in straight hooks, 1/2 in and 1 curved hooks, peg locks and 6 in shelf brackets.