Jump'in Blocked with Rollers Combination BitWe love this combination bit for its unique design and durable materials. It comes with an interchangeable nose piece too. The Combination bit is a hybrid between a hackamore and a standard bit. It splits the pressure points between the horse's mouth, the mandibles, and the nose. The interchangeable nose system adjusts the action of the mouthpiece. You can switch between a flexible rope nose and a rubber covered chain for a stronger action. The nose