Keep your volleyball court lines secure and rectangular during game play. Take your sand volleyball court to the next level. These volleyball court anchors have a quick set up and fit all volleyball court lines. These round discs easily bury in the sand to keep your volleyball net secure. Bungee cords and s-hooks are included for each disc. Includes four 8 inch discs that weigh down volleyball line corners. Tandem Sport has been manufacturing and distributing quality volleyball, sports medicine, equipment and training devices to the sporting goods market since 1989.