Size: 36L X 27W X 4H Inchcolor: Greyfabric: Heavy Duty Durable Oxford Fabric With Waterproof Coatingthis Listing Is External Replacement Cover Only, Without Dog Bed Or Other Fillersit Is Made Of Heavy Duty Durable Oxford Fabric With Waterproof Coating Backing, It Can Protect Your Dog Mattresspet Mattress And Prolong The Service Life Of Itthis Replacement Cover Is Suitable For All Dog Bed Types, Such As Orthopedic, Memory, Cooling Gel Dog Bed, And Fiberfill Pillowyou Can Also Fill It With Old Clothes, Blankets, Buckwheat Husks, And Othersour Dog Bed Cover Is Designed Two Zippers, You Can Easily Put In And Take Out The Dog Bed Or Other Fillersand The Zippers Is Designed To Be Hidden To Prevent It From Chews And Damages By Your Dogsit Is Stain Resistant And Easy To Clean, When It Gets Dirty, You Just Need Flush It With A Water Pipe, The Dirt Will Disappear Soon