Rhino Diamond 4' x 9/16" x Lin. Ft. (up to 75') 4yellow Anti-Fatigue Mats [ DTT48YY ] Rhino Diamond 4' x 9/16" x Lin. Ft. (up to 75') 4yellow [ DTT48YY ] - Visit http://rhino-mats.com/anti_fatigue_mats.html to view color options. Let us know your color choices at checkout.