Fitted internal and external bifold doors. Really impressed with manufacturing quality and fine tolerances.Straightforward to fit as I have reasonable skills. Pleased with smooth operation of doors for both the double glazed exterior triple door into the conservatory and also the double bifold just fitted and used as a room divider into dining room. Good delivery with obvious care taken in packaging products securely and also in transit by delivery driver. Fittings and hinges etc surprisingly good quality as standard. Second set of doors bought after good experience previously. Makes a huge difference to comfort in winter months and opens up in seconds when needed to create open space.Will buy again when need arises on other projects.