Fortress Softball Screen [Nimitz Edition] - Pitching Net & Frame Ultra heavy duty softball pitching screen for professional batter and pitchers. Specially designed softball screen for under arm pitching practice and player protection. Black galvanized 2in steel frame for the best stability and a long lasting screen. Double layer #42 weight net made from UV stabilized and rot proof 1 3/4in mesh. Pitching hole is mid-way up the net to one side and caters to left and right handed pitchers.