Dimensions: 35mm x 35mm Can be used with an Anvil euro or espag. lock handles and in conjunction with a euro sash lock or multi-point lock. A standard 5 pin euro cylinder. 5 year mechanical guarantee. Euro profile thumbturn cylinders offer a key access from the outside and a thumbturn from the inside meaning there is no need for a key when locking this door internally. Product is supplied with 3 keys and is 'Keyed to Differ'.