The Traditional Door Lock has been designed to replace most existing front door locks, providing added security to new exterior and interior doors|Suitable for fitting on either the inside or outside sliding track|Simply press the spring bolt to lock|Key only required to unlock|Fixings are concealed when in the locked position|Hardened steel pin the bolt resists hacksawing|Interior & Exterior|Material: Zinc Alloy|Fixings included|1 year guarantee and warranty