Jump'In Round pipe bit with holesComposition: German Silver (65% copper, 23% zinc, 12% nickel) is a relaxing and solid alloy. Effect: Two ring bits are the simplest in terms of action, but this particular cannon, the thinness of it, and the holes make the action way stronger. So this bit is relatively strong. Tips: this bit suits horses that need a certain action but no lever action. It doesn't fit every hand. Maintenance advice: rinse the bit after each use to prevent any residue