Trust Leather Curb Gag BitThe curb gag from Trust Equestrian has a sliding rope action on the cheekpieces, which applies pressure to the horses curb groove via a leather pad, rather than the strong poll pressure applied with a conventional gag bit. There is still a small amount of poll pressure, as the upper ring acts in a similar way to a hanging cheek snaffle. The core of the bit is made of reinforced nylon. The leather that is stitched around this core is naturally tanned