The SELECT Twisted Poly Batting Cage sets the standard in durability. Our nets are trusted by major league, college and high school teams across the country. SELECT uses the most advanced manufacturing process that ensures the highest quality and tightest knots made today. Every net is made from High-Density Polyethylene (HDPE). HDPE has little branching, giving it stronger intermolecular forces and tensile strength than lower-density polyethylene. Due to it's strength, HDPE is used in heat-resistant fireworks display mortars and in the ballistic plates in bullet-proof vests. Each strand of the netting is treated with a complex UV protection enabling the net to endure extreme weather conditions.