The TC/3.6 and TC/6 are round minimum metal Italian anti-tank blast mines. Both mines use the same fuzing system. They have round deep ribbed plastic cases that are either sand colored or olive green. The fuze works on an air pressure system, with the top pressure plate forcing air through a small bleed valve. The air then inflates a diaphragm which indirectly applies force to the striker spring until a steel restraining ball is forced out of the way of the striker. The striker is then flipped into the detonator, triggering the mine. A copy of this mine is produced in Egypt.