OverviewSpecsFAQsGalleriesResourcesReviews Product Description High-quality PVA fibers for concrete reinforcement in a variety of mixes 3/8 in length 8 Denier PVA fibers will chemically react with the concrete to reinforce and reduce shrinkage, plus reduce surface cracking by up to 90% Perfect for a countertop, vertical, standard flatwork, and other homemade mix designs Typical loading is 1lb per cubic yard of concrete, breaking down to 1/3 ounce for a 50 lb mix design (tuft in the palm of hand)