Rhino Marbleized Tile Top 18"x30"x7/8" (D) Anti-Fatigue Mats [ TT-1830DS ] Rhino Marbleized Tile Top 18"x30"x7/8" (D) [ TT-1830DS ] - Visit http://rhino-mats.com/anti_fatigue_mats.html to view color options. Let us know your color choices at checkout.