The Herm Sprenger Nathe D-Ring Bit With Flexible Mullen Mouth is a gentle, horse-friendly bit designed to provide steady contact and enhanced lateral guidance. The flexible mullen mouthpiece distributes pressure evenly across the tongue and lower bars, making it an excellent choice for sensitive horses or young horses in training. The fixed D-ring cheeks prevent the bit from sliding through the mouth while offering direct rein communication and improved steering control. Constructed from high-quality thermoplastic with a reinforced steel core, this bit combines comfort, durability, and reliability for everyday riding.