The Premium range from Deltarack is designed for long life. That is why quality played a central role in the design, both as far as construction and choice of material goes. To start with, the structure of the Deltarack Premium model is particularly strong and the birch plywood with thirteen different levels is glued watertight. These high quality features contribute to the durability of Deltarack Premium products, so you can use and reuse them for a long time.