Versatile chairmat is designed to protect both carpet & 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 & caster damage for both carpet & hard floors. Design also features a classic, straight-edge finish. Rectangular mat is also Greenguard Gold Certified to stringent standards for healthier indoor air quality.