LeMieux Prosafe Headcollar Psyllium Husks The GDM Impact Stamps have The GDM Impact Stamps have been developed using the finest materials and hardening process to maximize performance and durability The reinforced upper part of the boots helps the leg stay in the right position while the ankle offers support without restriction ensuring the boots mold to the shape of the leg and are very comfortable Adjustable in size at headpiece & throat lash for optimum fitting Triple ring design creates 3 options for varied level of control & severity whilst PVC rubber foam padded nose and poll allow for shock absorbing comfort at the same time