This plastic case fuze was designed especially for use in the PP-Mi-Ba plastic antitank mine.
It has only two metal parts; the striker point and the striker spring.
Both rest between the cap and striker shear ring.
Pressure on the cap compresses the striker spring and breaks off the shear ring, freeing the striker and firing the detonator.
Length: 41mm , diameter: 28mm.
Operating force: 136-227 kg.