Knob Diameter: 51 mm Rose Diameter: 57 mm features: Pair of knobs on unsprung roses Suits doors 35-65mm thick Fixing screws included Manufactured in the UK. Available finishes: - Antique Brass - Antique Brass Unlacquered - Imitation Bronze - Polished Brass Lacquered - Polished Brass Unlacquered - Polished Chrome Plate - Polished Nickel Plate - Satin Chrome Plate - Satin Nickel Plate For any other finishes, please contact our sales team. This product requires a good quality latch.