Stainless Steel 3 3/8" Medium Dee with Hooks with Stainless Steel Forward Tilted Port (MB 36, Level 2 3) Copper Inlay Mouth. The 36 Mouthpiece is a level 2 3, so it's a good choice for a horse who knows the basics and has a good disposition. It's a great choice for horses with advanced training in sports that need precision control. This is the Myler alternative to a traditional mullen. Like the traditional mullen, the 36 is a solid curved bar that sits across the bars of the horses mouth, but it has a wide low port that allows the tongue to pass under the bit comfortably. The low port applies no palate pressure, is similar to the 06, except it's 1/4" higher and the port is tilted forward. The Medium Dee with Hooks cheekpiece is slightly smaller than the traditional Dee and has slots for the bridle and rein creating a fixed rein position. A fixed rein position allows for better use of the Independent Side Movement, offering more effective communication between horse and rider. The upper slots keep the bit from falling forward and inhibiting tongue relief and effectiveness.