Kohler # K4550: white - 20 -1/2" wide x 8 1/4" front to back at the center.and 7 1/2"front to back at the outside edges.

The cover is made of china (Porcelain ware).

The cover is shown in White.

Also available in other colors ($10 extra)

This cover is used in good condition with no chips or cracks.