Full size model of F1 grenade.Dimensions 117 x 55 mm.The dummy simulates the bounce of a lever when the ring is ripped out and produces a clap. The clap mimics the countdown before the explosion, which of course does not occur. After the detonation of the piston from the bottom of the grenade, smoke appears through the hole.For manufacturing, in addition to printing on a printer, you must purchase:PistonNails Finish galvanized 50x1.8mm (1 pcs)Compressor spring 5.5х38 (2pcs)Key ring (1 pcs)Soldering tin wire