jump in loose ring double jointed bit copper insert and blue steel tongue portLoose ring double jointed bit with copper insert and Blue Steel tongue port Simple mouthpiece Fixed rings for a more direct action The double joint and tongue port relieve pressure on the palate Suitable for horses sensitive to tongue pressure The generous tongue port encourages a more relaxed mouth and better tongue placement Copper inserts encourage relaxation The Blue Steel alloy is composed of 54% carbon and 46% manganese Blue Steel bits oxidise