This rubber covered bit has D-ring sides to assist steering and prevent the bit being pulled through the mouth. Good for young horses. Mouthpiece thickness: 16mm Home DeliveryFree delivery on orders over £75Standard Delivery 2-5 Working Days: £4.95Next Working Day Delivery: £7.95Saturday Delivery: £16.95International delivery available: From £10.00Collect in StoreClick & Collect from Ingatestone Saddlery Country & Equestrian. Orders placed by 2pm will be ready to collect the next days (including weekends)Click here for further information Shires Rubber Covered Jointed Dee | Ingatestone Saddlery