Amazon.com: American Floor Mats - Horse/Stable Mats - Heavy Duty Stall Mats - Thick, Durable Rubber Flooring Solid Black 3/4" Thick - 4' x 6' Mat : Automotive
Rubberlogix Black Rubber Weight Equipment Mats 4' x 6' x 1/2"
Rubber Flooring Mat 4' X 6', 3/4" – Actuality Fitness
Amazon.com: Rubber Mat Flooring 4' x 6' x 3/4" for Gym or Equine, Heaviest Duty, Indestructible, Non-Slip, Smooth or Diamond Surface (3/4" Thick, 10-Pack (Diamond)) : Tools & Home Improvement
4' x 6' Solid Rubber Gym Mat 3/8" thick | Alpha Dog Sports
Amazon.com: Interlocking Rubber Mat Flooring 4' x 6' x 3/4" for Gym or Equine Stall, Heaviest Duty, Indestructible, Non-Slip, Smooth or Diamond Surface - The Standard (3/4" Thick, Interlocking Diamond Plate) :