Ger-Ryan - Adjustable Trailer Hitch 

Adjustable flat polypropylene tow strap. Double-stitched construction with a heavy-duty panic snap hook on one end and a heavy-duty Triggerbull snap hook on the other. Fully adjustable with a sliding buckle. Width: 1 inch, length: 18 inches to 36 inches.

Use with caution and supervision. For safety reasons, the anti-panic snap hook must be attached to the horse's halter. When released under pressure, it can injure the handler and/or the animal.