Batting Cage Net Savers. Prevent damage to your batting cage when securing it against the wind with this easy to use device. NetSavers prevent those costly and dangerous holes that are created by other methods of securement. They are constructed of two impact-resistant 6" plastic discs and an inner layer of soft protective foam. The design allows for damage-free attachment over extended periods of time. Spring clips and rope are not included. Pack of 4.