Gym1 Fight Station for Hanging a Heavy Punching Bag or Attaching a Speed Bag Platform Includes just the fight station which plugs into the Gorilla Gym doorway unit (not included) The Fight Station enables you to install a heavy bag or speed bag assembly on Gorilla Gym core doorway unit Plugs into your portable Gorilla Gym--right at your doorway with no drilling holes or damage to your trim weight capacity is a 150 pound heavy bag or the Gorilla Gym speed bag assembly made from professional grade steel tubing, comes with carabineer to hang the heavy bag