Glaze Tables are constructed of heavy duty structural steel with all welded joints. No assembly is required. The counter top is made of stainless steel. Stainless steel is far superior to aluminum surfaces. Cleaning is quick and simple. They come complete with tilt-out bins. Each large bin is capable of holding 150 lbs. of material. The small bins are capable of holding 25 lbs. of material. These bins are made of aluminum. This unit is a must for any institution. Note: These glaze units are designed for either one or two side access. Models 110, 1 and 3 have one side access, while models 2 and 4 have two sides for access.