Bombers Hackamore ATThe AT Hackamore is a cam style mechanical hackamore. It allows for 3 settings. Adjust quickly by adding or removing screws from the cam. Removing all the screws has the effect of removing nose pressure. It is supplied with a rubber tube covered bicycle chain noseband, a leather noseband and a leather backstrap. The bicycle chain is best wrapped in Vetwrap. You can switch out the chain noseband for the leather as needed. Available Sizes: Short shank