 It weighed 1.247 kg of which 612 g was high explosive.When thrown, a cylindrical metal cone was released from the rear of the grenade and held by fabric strips to stabilise flight and increase the likelihood of a 90 degree hit.Its range was limited by how far the user could throw it, and was obviously shorter than the contemporary rocket-propelled US Bazooka and recoilless German Panzerfaust, so that the user had to get closer and was in more danger of being seen.