The PS20-COL is designed to work with the Pro Series Models with the 20 inch Front to Back Measurement.   The AccThe PS20-COL is part of new condiment tray collection. These trays are designed to work with the Pro Series Models with the 20-inch Front to Back Measurement as well as the Brightwork Collection Models KSSH/KCH-PS-3220 Sinks. The wood cutting board is made from Acacia Wood while the colander is made from 304 Stainless Steel. This particular model has a bowl as well as a colander.