Surface Source 9 x 12 Rug Pad TrafficMaster Q: Does the set include Q: Does the set include both SAE and metric sizes 57 Arbor Size 0 Material Type Other For Use with Hardwood Yes For Use with Carpet Yes Warranty 1 year limited Actual Length (Feet) 12 UNSPSC 52101500 Use Location Indoor Actual Width (Feet) 9 CA Residents: Prop 65 Warning(s) No Common Measurement (W x L) 9 x 12 Place waffle side down on hard surfaces Place fabric side down on carpet Helps hide irregularities or grout lines in stone or tile floors Ideal support pad for thin or fine rugs Provides a solid base over carpet to reduce rug puckering around furniture legs Will not stain