Myler Stainless Steel 6 3/4" MBL Medium Shank, MB 33 Medium Wide Ported Barrel, Level 3
The MB 33 is the mildest Myler mouthpiece in terms of tongue pressure. The generously wide port allows room for the tongue to pass almost completely under the bit. Because this mouthpiece does not rotate on to the tongue and the port is wide, it applies little to no tongue pressure, working primarily off the lips and bars. The port on this mouthpiece is only 1 ½" high, so it will apply little to no palate pressure. Because the MB 33 offers such a high degree of tongue relief, the horse that goes well in this mouthpiece has a trustworthy and consistent disposition, and is trained to work off the leg and seat as well as the hands. Sweet iron mouthpiece oxidizes and encourages salivation.
Independent Side Movement
Sweet Iron Mouthpiece
Notes: For a slight increase in tongue pressure, see the MB 43LP or MB 43MP. For same tongue relief without Independent Side Movement, see the MB 16 (Western only). For the same tongue relief and Independent Side Movement, but with a slight degree of collapse, see the MB 05. For more generous tongue relief, see the MB 16PB.
The MBL Shank is a length of flat stainless steel curved slightly back towards the horse, with a teardrop purchase and a rein ring. The mouthpiece attaches loosely to the cheek with a small decorative stack that allows ⅛" of slide, just enough to allow more tongue relief. The purchase is angled slightly away from the cheek to avoid rubbing. The MBT has the patented Independent Swivel Cheek, where the purchase, mouthpiece and shank all move independently of each other.
The MBL is an indirect (curb) rein action designed to be used with a curb strap which attaches to the purchase. The MBL uses the combination of fixed cheek and fixed rein to apply pressure to the mouth, chin and poll. Recommended for use with ported mouthpieces.