Lightweight wall-mountable rack is molded of high-impact polystyrene and has 72 holes for interchangeable slanted drying pegs. Rack is 17x24" with 3" ledge to catch drips. It is supplied with 72 large 4" pegs for flasks or cylinders. Smaller test tube pegs are sold separately. Rack includes hanging hooks, draining tubes, and couplers for attaching additional racks side-by-side.