Wool Felt Sheet, Material Wool Felt, Shape Sheet, Length 12 in, Width 12 in, Thickness 1/2 in, Backing Type Plain, Durometer 20A to 30A, Wool Content 80 Percent, Density 6 lb/sq yd, Color Gray, Maximum Temperature 200 Degrees F, Minimum Temperature -80 Degrees F, Tensile Strength 250 psi, Grade F7, Vibration Absorption Medium, Texture Unfinished, Standards -, Abrasion Resistance Good