Features:complementary rangeDesigner knocker with integrated door viewerSurface fixing with concealed T-clipProduct Type: Door KnockerFunction: Style: Modern & ContemporaryFinish (Finish: White): WhiteFinish (Finish: Black): BlackFinish (Finish: Polished Brass): Polished BrassFinish (Finish: Polished Chrome): Polished ChromeHardware Finish: Hand Painted: NoPrimary Material: ZincPrimary Material Details: Weather Resistant: NoWeather Resistant Details: Water Resistant: YesWater Resistant Details: salt spray test to 480 hours BSEN1670 class 5Scratch Resistant: NoFire Resistant: NoFire Resistant Details: Rust Resistant: NoCorrosion Resistant: NoTarnish Resistant: NoUV Resistant: NoFade Resistant: NoChip Resistant: NoPick Resistant: NoPush Plate Included: NoLock Included: NoNumber of Cylinders: Number of Pins: Security/ANSI Grade: Number of Keys Included: Keyway Type: Strike Included: NoStrike Style: Hinge Included: NoHinge Type: Pin Type: Handle Included: NoNumber of Handles: Handle Orientation: Handle Finish: Number of Mounting Holes: 4Compatible Mounting Surface: upvcu & compositeCompatible Push Plate Part Number: Concealed Screws: YesCompatible Pull Handle/Plate Part Number: Door Type: ExteriorOutdoor Use: YesCountry of Origin: ChinaSpefications:GREENGUARD Certified: GREENGUARD Gold Certified: Dimensions:Overall Height - Top to Bottom: 11Overall Width - Side to Side: 7.5Overall Depth - Front to Back: 5.2Minimum Compatible Door Thickness: 4.4Maximum Compatible Door Thickness: 7Cross Bore Diameter: Bore Hole Diameter: Trim Ring Diameter: Overall Product Weight: 0.36Assembly:Adult Assembly Required: NoAdditional Tools Required: Installation Required: YesTools Needed for Installation: screwdriverAdditional Parts Required: NoParts Needed: Warranty: Finish: White