Offset dee horse bit features a 5" mouth, 3" dee rings and a sweet irondogbone mouth. This mild bit is great for starting or re-schooling a horse. Offsest refers to fixed position of rings and how they connect to the mouthpiece. Straight side of ring is designed to prevent the bit from pulling through the mouth and to eliminate pinching. Mouthpiece works independently of rings. Pressure points: bars, corners of mouth and tongue.