Made of high quality brass, never rust, durable, corrosion resistant and long service life Adopt spring mechanism and threaded insert spring design. The size and material are suitable for most sinks, sinks and bathtubs. Material: brass Quantity: 6 pieces Package includes: 6 screws for concealed sink Note: Specific details are shown in the picture. Manual measurement, deviations of 1-2 mm are possible.< / P>