The term IT CAN HOLD YOUR HORSES can be summarized by the crossword solution of HARNESS. A HARNESS is a piece of equipment used to control and direct a horse. It is typically made of leather or nylon straps and buckles, and is used to attach a horse to a cart, wagon, or other vehicle. The HARNESS also helps to distribute the load evenly across the horse's body, allowing it to pull heavier loads than it would be able to without the HARNESS.