Three rows of hairpin-loop supports (14 in all) hold labware with 18mm ID necks and larger. Top row has 12 straight pins 4" long for smaller items. Polystyrene backing sheet improves visibility. Polystyrene tray at bottom catches drippings. Legs have rubber-tipped feet for use on tabletop and wire loops on back for hanging on a wall. Dimensions: 16.75" x 6.5" x 19.5"H. Shipping weight: 4.5 lbs.