Product Name: Union 2203 Strongbolt 3 Lever Sashlock Polished Brass 81mm Finish: Polished Brass Default Keys Supplied: 2 Keys Backset: 57mm Case Height: 110mm Case Width: 81mm Faceplate Length: 162mm Faceplate Width: 26mm Centres (PZ): 57mm Handing: Non-Handed Manufacturer: Union Locks Benefits of Union 2203 Strongbolt 3 Lever Sashlock: Enhanced Security with 3 Lever Sashlock Beautiful Polished Brass Finish Comes with 2 Keys for Convenience Optimal Backset of 57mm for Easy Installation Sturdy Case Height of 110mm for Durability Upgrade your door security with the Union 2203 Strongbolt 3 Lever Sashlock in elegant Polished Brass. Say goodbye to worries with the included 2 keys and enjoy the convenience of a 57mm backset for seamless installation. The robust 110mm case height ensures long-lasting protection for your home.