This is a support plate that came with the Craftsman Sink (JS Sink) of the CENTRO series by Cleanup. It is an accessory of a kitchen installed in 2019. Although the model number is unknown, based on the size, it is likely the same as "Cleanup ZKPPQN-D Support Plate". Size: Width approx. 30.8cm, Depth approx. 45.8cm, Height approx. 1.8cm Only opened for photography, it is unused. There are some stains and small scratches from the time of opening. Please make your purchase after judging from the photos. It will be packed with cushioning material (bubble wrap) and cardboard for shipping.