The SIPE is known in several types with only small differences.
It had a brass or zinc fuze which had to be lit by hand.
Filled with a black powder charge.

Total length: 83mm , Diameter: 66mm
Weight: 530gram , Filling: 70gram.

The photos below © Stefano de Luca.

Photo below taken off the internet. This seems to have a lead fuze with a steel tube.