I have generated STLs for different bottle diameters from 80 to 120 mm in 5 mm increments but you can also customize it by changing the "d_bottle" parameter in the Fusion 360 CAD file. BTW for me, the 90 mm seems to be the most universal size. The rack is 80 mm long (this, as well as everything else, is also parametric) because I wanted to save as much plastic as I can.