4 ft. x 6 ft. Thick Rubber Stall Mat at Tractor Supply Co.
BELMONDO stable floorings made of rubber for horse-keeping | BELMONDO Gummibodenbeläge für die Pferdehaltung
Burnhills Rubber Stable Mats / Rubber Stable Matting at Burnhills
Amazon.com: American Floor Mats - Horse/Stable Mats - Heavy Duty Stall Mats - Thick, Durable Rubber Flooring Solid Black 1/2" Thick - 4' x 6' Mat : Pet Supplies
Durable Equine Stall Flooring, Animal Mats, and Horse Stall Mats