It consists of a lower and upper metal tray, and an internal metal-cased explosive block.
Attempting to disarm Riegelmines is extremely dangerous because the metal wires in the fuze mechanisms quickly become corroded, which makes them highly unstable.
As a result, Riegelmines are highly sensitive to the smallest disturbance, and therefore can easily detonate simply by touching them.
The recommended render-safe procedure for any Riegel mine is to destroy it in situ by detonating a small explosive charge next to it.
Countries where Riegel mines were laid include the Netherlands, Egypt and Libya.