The #550 Cushion Ease Mat is a heavy duty kitchen mat intended for the busiest areas. This mat comes in 3' x 3' and 3' x 5' interlocking mats and can be combined with theCushion Ease Solid Matsto create a custom work area. The large 1" perforations and nibbed backing on this mat allows for easy drainage. Use the Black Grease Resistant Mats for normal work stations and Red Grease Proof Mats for areas exposed to excessive oil and grease. The optionalMD Ramp Systemcreates a finished colored edge to prevent tripping and allow easy access for carts.