AFS-TEX® 3000X Black Active Anti-Fatigue Mat 20" x 39" - Black Anti-Fatigue Mat - 39"L x 29"W x 0.8"D AFS-TEX Active Anti-Fatigue mats are designed to provide the ultimate standing surfaces combining prolonged comfort and effective body support. Reduces the strain on feet, legs knees & back joints that can be caused through prolonged standing. The AFS-TEX 3000X, extra high gauge, provides an wide format surfacewith advanced ergonomic features for extended standing locations. Contains anti-microbial content to protect the mat surface from microbial deterioration. Effective 24/7 for the life of the product. Anti-slip base for stability. Non-toxic and phthalate free. Ideal for office or home use.