XFORT® Polished Chrome Locking Door Chain, Security Chain with Door Lock, Door Locks Internal, Door Restrictor for Privacy and Safety, Door Chains with Locking Mechanism for External Key Unlocking. by Amazon.co.uk

• QUALITY: The XFORT door lock is high quality made from strong and reliable steel. This heavy duty chain works as a chain lock for front door with the added benefit of a door lock mechanism allowing the front door to be fully released from the outside with a key.

• SECURITY: The XFORT door chain is a door security must have! The XFORT key chain restricts the door from opening enough for entry, keeping the user safe, allowing them to answer their door without providing ease of access to their home. This door chain lock also helps prevent young children from opening the door when installed out of their reach.

• SMOOTH ACTION: This XFORT chain lock has smooth operation and will prevent the security chain from snagging or sticking unnecessarily. Door locks internal should not be a burden that make you worry about having to force open. They should simply be an additional door security feature to keep you safe, just like this XFORT door restrictor.

• UNIVERSAL: XFORT door security chains can be used on multiple materials. The internal door lock works on wooden, composite, upvc and many other doors. The front door lock is protected with polished chrome coating to prevent wear and tear. The XFORT door lock with key will function well on most surfaces.

• EASY INSTALLATION: No drilling or chiselling needed when purchasing an XFORT stainless steel chain! XFORT door chains come supplied with all the fittings and fixtures needed for installation. This steel chain is surface mounted and comes with screws and 2 keys. No additional screws are required!