this is digital body thermometer, what you get is STL file and IGES file. the model was drawn by using Solidworks sofware. all dimension is follow actual body thermometer that have in market. you can use straight away STL file to make mockup from 3D printer. It came with cover/casing that will proctect and to keep thermometer from unwanted condition. The file have three parts. 1st thermometer, 2nd cover A and 3rd cover A2. Also included with assembly file, which is you can study, and it fit with nicely. If you have any problems with this model, please contact us, and we are ready to help you.