The Bombers Control Plate is set at 45° to follow the contour of the horses tongue. Consequently, a horse who uses his tongue as a means of pushing against the bit and therefore taking control, will draw back and tuck his chin in, coming back to a better point of control.
The mouth piece is made from blue sweet iron, because it:
oxidizes easily
encourages salivation
helps bit acceptance
is warm and sweet
Please note the blue will fade with use.