Vintage Rubbermaid Sink Mat.  #2993.  L3-2993-XO-BLA.    Black. 1 pc. 

 13 1/2" L x  x 11.25" W. 

Microban

Center Drain Lift-up tab keeps utensils from entering disposal. 

Condition is New Old Stock©2006- sealed.    Shipped with USPS/Fedex