Sized to accommodate a wide range of standard adhesive floor mats Available in White and Black (black only available in 25.50 x 31.50 and 37 x 46 in.) Bases are composed of polystyrene with a non-skid backing layer Frames are composed of anodized aluminum, center of frame is polyethylene
Both materials are inert and non-contaminating Non-skid backing layer 3/16 in