The patented design of BOXHILL’s Chicken Swing allows the chickens to actually pump the swing! The mailbox shape of the perch, with corn like texture, allows a broad spectrum of sized/aged fowl to grip and torque the perch. That action transfers to the tongs to tug on the rope, keeping the swing in motion. Great for all chickens, keeps every one of them excited to the very last swing. Reduce coop boredom and bring smiles to the people that care for their chickens.