The SuperMat Plus features Micropel antimicrobial to provide longterm protection against a broad spectrum of bacterial and fungal attack for the life of the chairmat Free and Clear nonorthophthalate, noncadmium material formula promotes a healthy work environment while offering exceptional clarity and durability Nonstudded bottom provides excellent, nonskidding gripping power over hard floor surfaces such as hardwood, tile, laminate, linoleum or concrete Straight edge enables you to seamlessly transition from the chairmat to the hard floor Chairmat is Greenguard Gold certified for low chemical emissions and healthier indoor air Rectangular chairmat is a versatile choice for hard floors