Sold as 1 Each. The perfect choice for results-driven professionals. Free and Clear formula offers exceptional clarity without harsh chemicals. Textured top surface is slip-and-scuff resistant so your chair mat always looks brand new. Our thickest medium-weight chair mat. GREENGUARD Gold Certified for low chemical emissions for healthier indoor air. For medium pile carpeting. Provides a solid foundation for frequent users and heavier office chairs. Smooth beveled edge for easy carpet to mat transition. Weight: 16.9 lbs. Easy-glide rolling surface. Studded for superior gripping power on carpets. Limited Lifetime mfr. warranty.