Ensure Excellent Suction Capacity: The thickened suction cup base made of PVC which has ultra flexibility to release air. This suction cup towel rail holder works with vacuum priciple, provides powerful suction with a weight bearing capacity of 11lbs/5kgs. It won’t come off or come loose under the weight of a wet towel. Stury Construction Material: Made of thick SUS304 Stainless Steel, all metal construction, sturdy and durable. This heavy duty towel holder comes with a brushed finish that protect against daily corrosion, rust, scratches and doesn’t display any spots. Simple daily maintenance, looks new even after years of use.