Hello Ran and thank you for your feedback on Home Depot’s website for our Moen Attract with Magnetix 6-Spray 3.75 in. Single Wall Mount Handheld Adjustable Shower Head in Mediterranean Bronze. While parts may appear to be made of non-metallic, we are actually using enhanced polymers to make these parts resistant to corrosion and rust; the enhanced polymers are tested to ensure they are durable over time and usage. Rest assured that our Limited Lifetime Warranty and the highest quality components available are selected to meet the qualifications of our products and to provide peace of mind. Should you require any warranty assistance, we would be happy to help you and show you we stand by our products. Please feel free to call us at 800-289-6636. Our business hours are 9:00 a.m.-5:30 p.m. Eastern Time Monday through Friday.