CTS Thompson Model 7082 Blue Box Cover for chain style handcuffs has been discontinued and replaced by Model 7084. The redesigned blue box works exactly the same, but now it accommodates handcuffs and leg irons. It can be used on leg irons by putting one box on each cuff of the leg iron and securing with padlocks. Made of reinforced ABS and steel. Blue Box Transport Systems: safe, strong and tough. CTS Thompson Blue Box systems keeps handcuff keyholes covered for top security during transport or detention. Double locks can be activated from outside of box. Accepts most standard chain handcuffs, oversized chain handcuffs, and leg irons (with one box on each side). Handcuffs or leg irons not included. Weighs 4.6 ounces.