safety lock-shower mixer at 38°c with tatic spool to prevent sudden changes in temperature or pressure to maintain the water temperature in the shower at a safe level of +/- 3°c reliable and healthy materials: 10" rain shower (stainless steel), shower valve (brass), hand shower (brass), bath spout (brass), shower arm (brass), shower seat (brass) concealed installation made easy: g 1/2" pipe thread, modern design, concealed installation, shower combination for a more modern and elegant bathroom with no visible plumbing in the bathroom! the concealed installation ensures a modern and pure overall impression. air energy technology: provides a powerful and constant shower even at low water pressure and the product saves 30% of water, making it a great gift for friends and family in a renovated bathroom. air jet technology: increases oxygen content and water pressure (ligent water saving), simulates natural rainfall and provides you with natural contact with the water