This ultra durable football value pack includes 50 ground sockets with plugs, an installation accessory kit, 12 spring loaded end zone pylons and storage bag for a complete field marking system. * Complete Marking System plus Game Day Markers. This set includes:. 50 ground sockets with Plugs. Installation Accessory Kit (IAK). 12 spring-loaded end zone pylons. Storage bags. 4 ea. 10/20/30 yard sideline markers