The Clerk of the Scales is responsible for ensuring that each rider carries the correct weight when riding in a race. Using digital scales, they weigh the jockeys and their equipment before they go out to ride, before checking again that their weight is correct when they return back after the race. They also ensure that the riders wear the correct colours and horse’s carry the correct headgear (for example, blinkers or a visor) that a horse has been declared to wear during a race.