The patented Free-Up Feeder is great for stall feeding, swings open to fill in less than 30 seconds! Ideal for large stables & streamlining chores! The metal Free-Up Feeder Frame measures 12″ x 24″ and features safe, rounded corners, plus a threaded locking nut. Open the nut to slide your Cinch Net onto the frame. Once the net is on the frame, turn the nut to close for additional safety and overall structural strength.