ES-SL Essentials 3 Lever Mortice Sashlock Chrome 79mm 3in Visi

Forend finish: Chrome.
Case size: 79 x 101mm.
Backset: 58mm. This is the measurement from the edge of the door to the centre of the keyhole.
Centre: 57mm. This is the measurement from the centre of the follower, which operates the handles, to the centre of the keyhole.