The plug sits in the horse's ear and is attached to the bridle using the small snap hooks. Also included is a pull cord that runs back to the sulky. This enables the driver to pull the plugs out if required during the race.
This model is made from moulded rubber to sit firmly in the ear and tend to block out more noise than other materials.
Moulded Rubber with Black Cord.
Coloured cords are a safety requirement for harness racing in many countries. Please check with local authorities for rulings in your area.