The Muzzle Soft Insert from Shires attaches to the Greenguard Muzzle. It is recommended for horses with sensitive teeth and muzzles and secures inside the muzzle to create a smooth and softer surface. The insert clips into place, the holes line up with the holes in the muzzle to prevent any compromise of grazing. The insert is compatible with post January 2022 modified Cob and Full muzzles, recognizable by the 6 slots for holding the plates. Available in size Cob or Full to fit your Greenguard Muzzle.