5mm Yoga and Pilates Mat - 100% All Natural Tree Rubber, Free of harmful Dyes, Non-toxic Anti-Slip, Eco-Friendly - Contains Absolutely No Plastic PVC or TPE - 100% Biodegradable ALL NATURAL Tree Rubber, non-toxic containing NO synthetic rubber or harmful plastic like PVC, or TPE - no obnoxious label 5MM THICKNESS AND FAST SPRINGBACK POWER GRIP - Never Slip Again HIGH QUALITY - SGS certified - longer lifespan than foam mats LONGER SIZE! 72"x24"