The filet baucher is one of the most popular snaffle bits and having all the advantages of the KK mouthpiece makes this Sprenger hanging cheek very popular. The KK ultra hanging cheek mouthpiece and cheeks are made from the revolutionary patented material Aurigan, which works like no other metal. Aurigan is a copper based material that oxidises to produce a pleasant and distinctive taste that horses love, and encourages a soft relaxed jaw, wet mouth and quick acceptance of this Sprenger bit