The MENNY-D4 model is a portable lightweight door-forcer, easy to operate under any condition. It requires no energy source, making it suitable for both security and fire forces to breach steel doors. This model is designed for Special Forces and anti-terror units, breaching within 4 seconds from setting. The device can be carried on the neck, with a unique strip, allowing easy operation and quick setting. The door-forcer includes the power-assisted HPN-4190D. The setting is being done by a silent fixed 360° rotatable manual pump. This model is able to deal with doors up to 1,675mm.