Inside the forks are two layers of rollers, one on top of the other, that rotate one another when the forks are moved along the ground.
The basic principle involves the upper rollers rotating at exactly the same speed, but in the opposite direction to that of the lower rollers that are in contact with the floor. When the ROLLERFORKS® are lifted off the floor, the rollers automatically drop to allow the load to rest on top of the forks. ROLLERFORKS® and rollers are made of high-grade materials, which are subject to virtually no wear and tear, as no axial forces are exerted. All dust and dirt remains on the floor.