Mutual NW35 Non Woven Geotextile Polypropylene Fabric Cut Roll, 90 lbs Grab Tensile Strength, 300' Length x 6' Width Non-woven3.5-ounces fabric Used as a filter, allow subsurface water to pass into drainage core while preventing soil from clogging the system Absorb asphalt tack to form moisture barrier that retards reflective cracking 90 pounds grab tensile strength Measures 300-feet length by 6-feet width