Professional's ChoiceThis Professional's Choice Ported Correctional Pony Shank Bit boasts a unique teardrop cheek that provides substantial weight for a short shank, resulting in excellent balance and ease of use for the horse.Its teardrop design is intended to offer a slight rein slide, giving the horse a pre-signal before engaging the mouthpiece.The port measures 1 1/2", the mouthpiece measures 4 1/2", and the cheek measures 4 3/4", making it a great addition to your equestrian collection.The product number for pony this bit is EQPB-103.This Professional's Choice Ported Correctional Pony Shank Bit boasts a unique teardrop cheek that provides substantial weight for a short shank, resulting in excellent balance and ease of use for the horse. Its teardrop design is intended to offer a slight rein slide, giving the horse a pre-signal before engaging the mouthpiece. The port measures 1 1/2", the mouthpiece measures 4 1/2", and the cheek measures 4 3/4", making it a great addition to your equestrian collection. The product number for this bit is EQPB-103.