1. Flexibility of the arms, which move upwards and sideways when accidentally struck by a forklift truck, thus preventing deformations. 2. Rounded ends at arms and bases protect your goods and the forklift truck's tyres. 3. Storage space without sharp edges. 4. An arm adjustment screw provides for level storage of all goods. 5. The arm adjustment grid of 100: 100mm guarantees an economical use of every storage space. 6. Easy and quick positioning and adjustment in height of the arms.