This draining and drying rack is made to drain, dry, and store test tubes, beakers, flasks, and miscellaneous lab glassware. It can hold up to 90 pieces of glassware on 72 pins that are 3 inches long and 18 pins that are 6 inches long. The rack can be used standing up, lying down flat, or mounted to the wall. The frame is made of strong extruded steel wire that is spot-welded throughout. The black vinyl coating is resistant to many chemicals and oils and serves to cushion glassware and protect the heavy gauge wire from rusting while helping to save glassware from chipping and breaking. An integral galvanized drain pan keeps countertops dry. Capacity: 90 Pieces Of Glassware. Number Of 3-Inch (7.6cm) Pins: 72. Number Of 6-Inch (12.7cm) Pins: 18. Dimensions (L x W x H): 18-1/2 x 7-1/4 x 19in (47 x 18.4 x 48.3cm). Weight: 4.5Lbs (2.0kg). Accurate Wirecraft® #: 9018070BK.