Then #2Ignore the bulb shape for #2. It will be a fan - so both brushes are fan type. The only difference is the brush shape and color (blue marble vs. ocean blue).
+1Just get both, that is the easiest decision to make.
This is good information to know when ordering from Shavemac.Might think about a 48mm loft. 3 of 4 of my shavemac's run a mm or two longer than ordered with 1 right on. None of the 4 are short.