Hi guys-

I would like to make a dependent drop down menu from the following table:
Diameter Type of Measurement Serial #
3.9 Stereo PXTM45050FG(Black)
3.9 Stereo PXTM45050SG(Blue)
4 Stereo TM405555FG(Black)
4 Stereo TM405555SG(Blue)
5 Stereo PXTM56060FG(Black)
5 Stereo PXTM54545SG(Blue)
6.1 3D Phase XL4TM61105FG(Black)
6.1 3D Phase XL4TM61105SG(Blue)
6.1 Stereo XLG3TM616060FG(Black)
6.1 Stereo XLG3TM615050SG(Blue)
6.2 Stereo PXTM626060FG(Black)
6.2 Stereo PXTM626060SG(Blue)
8.4 Stereo XLG3TM846060FG(Black)
8.4 Stereo XLG3TM846060FG(Blue)

I've researched help online but still confused.

Thank you so much!