Ecotex Marlon BioPlus Polycarbonate Chair Mats provide the ultimate in quality, function and durability combined with eco-friendly material and manufacture. Produced using a "Mass Balancing bio-circular" process with both the resin and chair mat manufacture ISCC certified. (International Sustainability & Carbon Certification). With twice the impact strength of PVC, the perfectly flat and rigid material provides an ergonomic easy glide surface for caster based chairs, which can reduce leg fatigue and lower back strain. Guaranteed not to crack, curl, discolor or smell. Free from Phthalates, PVC and toxic chemicals. An ideal choice for people with allergies. Manufactured in the UK using 100% Renewable Energy, including solar and wind power. The resin manufacture is climate neutral with a 100% reduction in carbon emissions. Contains 89% non-fossil based bio-circular material, such as used cooking oil, for a dramatically reduced impact on the environment. 100% recyclable. Marlon BioPlus mats lie perfectly flat from delivery for immediate use. Limited Lifetime Warranty.