V1 is a more complete circular shape but I found it was too deep to fit in my medicine cabinet, so V2 has a flat chopped back to rest up against the back of the cabinet. Still has plenty of room to hold the pads.

Interior Diameter 88.9mm

Outer Diameter 96.9mm

Height 176.8mm

I printed version 2 with the flat back against the bed. 20% infill with a .2 layer height and tree supports.