For complete workflow compatibility, we recommend downloading the source format.The Converted version is intended for web viewing only. In the source file, the following are fully preserved:✔ full scene structure✔ all materials without simplification✔ accurate texture maps✔ original object namesIf you plan to use this model in production, download the source file.A mechanism employed to control the movement of a door enabling it to be opened and closed while also serving as a means of securing the property to prevent unauthorized access by unwanted individuals.