The Excel Hardware Standard Escutcheon Black Nickel has a 53mm diameter. This is to be used with a 3 or 5 lever mortice deadlock or sashlock; some of these can be found in the related products or in the Hinges, Locks & Latches category. This escutcheon is made from zinc alloy & has a black nickel finish - it is to match the Flex handle in the Excel Hardware range. Other Variations It is also available with a euro profile or the following finishes: Dual chrome/black nickel Dual chrome/brass Electro brass Oil rubbed bronze Polished chrome Satin chrome Satin nicke...