Sprenger CM Mullen Mouth Snaffle Horse Bit 40583-78 (16mm Thick, 70mm Ring)Sprenger CM Mullen Mouth Snaffle Horse Bit 40583 78 (16mm Thick, 70mm Ring) relieves the middle of the tongue, exerts pressure only when pulling the reins ideal for horses with a thick and fleshy tongue can be used for the correction of tongue vices for a time period of 2 3 weeks suitable for horses that are strong and wilful Please note you may need to allow up to 7 days for dispatch.