The RollerFork® consists of a special lift truck fork that serves as a supporting frame with a special hinge in the heel allowing it to always lie flat on the floor. Inside the fork are two layers of rollers, one on top of the other, that drive each other when the forks are moved over the floor. The basic principle is that the upper rollers rotate at exactly the same speed but in the opposite direction as the lower rollers, which are in contact with the ground. When the RollerFork is lifted from the ground the rollers automatically lower and the load is held on the forks. The RollerFork and the rollers are made of high-grade materials, and because there are no axial forces there is hardly any wear and tear. Any dust and dirt will end up on the floor.