

During the second Intifada, the Brigades developed the manufacture of hand grenades, which went through many stages, as well as anti-personnel and anti-vehicle explosive devices called “Shawaz.” The first model of Shawaz contained 40 kilograms of explosive materials, and Al-Qassam Brigades later introduced modifications to it, developing approximately seven generations of it. The most recent version, which contains 3.5 kilograms of highly explosive materials, is capable of penetrating about 40 centimeters of iron. The last version of Shawaz was tested on 9 pieces of iron, each of them 5 centimeters thick, at a distance of about 60 centimeters, which means it would be able to penetrate the Israeli-made Merkava tank.(84).
https://english.almayadeen.net/news/politics/hamas-unveils-groundbreaking-armor-piercing-efp-devices-in-j