Jump In Three Ring Double Jointed Bit Blue SteelThree ring bit with 70 mm rings and a 16 mm mouthpiece in Blue Steel The Blue Steel alloy is composed of 54% carbon and 46% manganese Blue Steel bits oxidise when exposed to air and moisture, developing a thin layer of rust with a sweet taste that naturally stimulates saliva production in your horse The more your horse salivates, the more easily he will accept contact with the bit During the oxidation process, the colour will shift to grey brown