Twisted bit with a rollerComposition: German Silver (65% copper, 23% zinc, 12% nickel) a relaxing and solid alloy. Effect: The roller and the thinness of the cannons give a lot more action to this bit. The twisted cannons and the flat make this bit stronger. Tips: this bit is perfect for a rider horse couple needing more control without any leverage effect or a curb chain. Maintenance advice: rinse the bit after each use to prevent any residue deposit and to avoid your horse