Excellent for use in severe corrosive conditions, this heavy-duty support stand is made of polypropylene with metal screws.Measuring 21.5 x 40.5 x 5cmH (8.5 x 16 x 1.75"), the base has a smooth surface for easy cleaning and weighs 2.5 kg (5.5lbs) for stability12.5 mm dia x 76cmL (0.5 x 30") rod can be screwed into the center of the base, or at either end; has a deep thread and sturdy tightening knobAutoclavable