Training Bit (Manufacturer Unknown) This bit is designed for use with Western-style working horses. Due to the port shape and lever action, it provides clear cues and a quick response. Not permitted for use in British dressage competitions. Please understand that this is for training and schooling purposes, not competition. Stamped with "DH" (see photo). The manufacturer is unknown as it cannot be identified. While there is some wear and tear, there are no functional issues. Please purchase only if you understand this.