Wool Felt Strip, Material Wool Felt, Shape Strip, Length 5 ft, Width 1 in, Thickness 1/4 in, Backing Type Plain, Durometer 5A to 15A, Wool Content 45 Percent, Density 1.625 lb/sq yd, Color Gray, Maximum Temperature 200 Degrees F, Minimum Temperature -80 Degrees F, Tensile Strength 75 psi, Grade F26, Vibration Absorption Ultra Low, Standards -, Abrasion Resistance Poor