The 1/4“ thick ExecuMat® is engineered for all-day use on any carpet type, making it an excellent choice for big and tall users and heavier office chairs. Easy-glide rolling surface provides smooth chair movement. Studded design keeps the chair mat from moving while protecting carpets from caster wear, spills and heavy traffic. The ExecuMat® features a Free and Clear® formula for exceptional clarity without harsh chemicals. GREENGUARD Gold Certified for low chemical emissions and healthier indoor air. Features a Limited Lifetime Product Replacement Warranty. Made in the USA.