Versatile chairmat with a lip is designed to protect both carpet and hard floor surfaces. Stud-free SuperGrip coating offers twice the grip than standard Deflecto studs on carpet. Exclusive SuperGrip coating prevents mat from moving on hard floors. DuoMat Chairmat provides durable protection from chair scuffs and caster damage for both carpet and hard floors. Design also features a classic, straight-edge finish. Mat is also Greenguard Gold Certified to stringent standards for healthier indoor air quality. Lip size is 25" x 12".