Inspired by decorative Victorian-era design, the Iver Stirling lever adds ornamental character to doors. This Rectangular Backplate Key/Key Entrance Kit pairs two levers with a high-security Euro mortice lock, allowing the door to be operated by key from either side. The kit includes the components required for installation. Each backplate is 240 mm high and 38 mm wide; the lever is 116 mm long with a 62 mm projection. The lock has 85 mm centres and a 60 mm backset. Iver lists the Stirling levers and backplates as fire rated to 2 hours; accessories are not fire rated.