I don't know the original Belgian name for this grenade. The name above was the German designation during ww2.

This thin aluminium grenade contained a dangerous gas of unknown origin. The form and material was about the same as the normal HE-grenade. This grenade could also be launched from a cup discharger.

Total Length: 120mm, Body Length: 95mm. Diameter: 40mm.
Weight and Filling unknown.
Delay: 4.5 seconds.