This is the first model of a series for DIY perfume making. A simple friction-fit tag, name, and label holder for basic 3ml pasteur pipettes. It does not prevent the usage of the pipette, but it is a bit uncomfortable to have something in the way. It has an 13mm internal diameter. So anything 13mm should fit. If required, you can scale 99% or 101% etc. For the label insert, the height is 10mm and the width is 35mm. I am using a small label maker, and the label insert just fits. I have printed them label side down and without any support, the opening for the label is small, so most of the printers should print okay. Just do not turn it 45 degrees. V2: The first version was too small. Fixed. V3: Reworked the tag holder part more strength and a better fit for 10mm tags.