DZIGN Woven Roving Mat is perfect for any size job, large or small. The fiberglass cloth is a versatile repair material for use on automobiles, boats, tubs, showers, sinks, pools, hot tubs and more. DZIGN Woven Roving Mat is a woven fabric that helps reinforce repairs with its high strength to weight ratio. Use this fiberglass cloth where resin alone would not provide sufficient strength. Fiberglass cloth offers numerous benefits, including a resistance to expansion or contraction as temperatures change. This fiberglass cloth is highly pliable, enabling it to conform to curved surfaces Woven roving is the most economical way to include high strength rovings in a composite laminate. Roving strand bundles are simply woven loosely at 90 deg. orientation like cloth.Comes folded as shown. Any folds can EASILY be straightened while laminating (this is common, this does not harm the material).