104 Reinsman Sweet Iron Medium Ring BitMade of the same sweet iron as Reinsman other bits, this bit provides more mullen relief for more lip pressure and the tapered center adds more tongue relief without any palate pressure. Sweet iron naturally rusts into a light patina, which creates a sweet taste for the horse, making the bit more acceptable and increasing salivation for a supple mouth. 3 Rings 5 Mouth 7 16 Tapered Sweet Iron Snaffle Stage A