Trust Sweet Iron Eggbut Gag French Link BitWe suggest these bits because they are particularly suitable for horses with sensitive corners of their mouth. The mouthpiece lies quietly in the horse's mouth. The transitions to the side parts make these bits particularly gentle on the muzzle. as well as an additional lateral support due to the contact surface of the side parts. Eggbut, D Ring & Full Cheek act like snaffles and only act on rein tension. Sweet Iron helps increase the chewing