Features:*Brand new unused*Made of high quality material, *Application: for piston compressor valves*Valve plate only, other accessories demo within the photograph isn't included!Specification:Type: Valve plateMaterial: ManganeseColor: SilverOptional Model:10X47mm / 11x57mm / 11x57mm,10x47mm(10 each)Dimension:11*57: app.11x57mm/0.43x2.24in10*46: app.10x47mm/0.39x1.81inQuantity: 20pcs/setPackage Included:20x Compressor Valve Plate(optional)Note:1. The genuine shade of the thing could also be barely varied from the pictures proven on web page caused by many factors akin to brightness of your video display and light-weight brightness.2. Please enable slight handbook size deviation for the data.