This bamboo cutting board is custom-designed to sit securely on the basin ledges of the Prolific kitchen sink. Use it as a convenient work surface for prepping foods directly in the sink.Features:Included with the K-5540 and K-23651 Prolific kitchen sinks.May also be used with K-23650-NA and K-23652-NA Prolific kitchen sinks.Provides an in-sink work surface for prepping food.Doubles as a sink shelf.Durable bamboo construction.Assembly Required.