The metal dish racks are made of high quality 304 stainless steel, very sturdy and durable, which won't rust within 8 years.The dish drainer rack can be used to dry or rinse vegetables, fruits, mugs, dishes, pots, pans, etc. It can be used in the sink or over the sink, on the kitchen counter or by the sink with drying mat (not included). It takes up a fraction of the space.The removable silverware holder is also made of top quality 304 stainless steel. It is rustproof, durable and easy to clean, can be used to hold forks, knives, etc. The dish drainer features dish slots, which can hold 7 dishes vertically.The arms of the drainer rack are adjustable from 14.96" to 22.64", which makes it suitable for most sizes of sinks, and very easy to handle