Tenby Living Premium Anti-Fatigue, Kitchen Comfort Mat #2 (Large) - Double-Si... Phthalate-Free Flexible PVC: No Harmful Chemical Treatment Anti-Fatigue: Reduces pressure on your knees, feet and joints Double-Sided: Switch up! Colorful on one side and subdued on the other Multi-Purpose: Brighten up your kitchen, living room or office Thickness of 0.5 inch for optimal comfort