Extendor Sliding Security Grilles
The
Extendor range of retractable security grilles are designed to give maximum
strength , yet with careful consideration to aesthetics, so it looks good
too.
Extendor
acts as a strong visible deterrent to would be intruders, then retracts
to visually blend in to door and window frames when not in use. 
Approved
by Central Governments Security Facilities Executive, the `Elite' version
of the Extendor range is equipped with a multi point lock, hardened steel
flights, and rotating stainless steel rods in each upright, affording unrivalled
strength and durablity.
Manufactured
in the UK and fitted by our expert installers. Users include Banks, Schools,
Government Departments, Utilities, Local Councils, Health Authorities, etc
etc. 
NB.
Extendor is often used to protect windows and doorways in homes