 The mine consisted of a large cylindrical main body containing a 60 mm mortar shell linked by a steel tube to a fuse holder which held either a pressure fuse or a pull fuse for use with tripwires.A rectangular thin metal plate positioned halfway up the main body of the mine provides additional support.When the fuse is triggered, a flash travels along the steel tube to the base of the main body, where it ignites a 0.8 g black powder charge, launching the mortar shell from the mine and igniting a pyrotechnic delay.