Modular Screw-Segment Pill Case

Multi-compartment travel pill case that won't pop open in your bag. Multiple different sizes of bottoms & middles, plus a cap to build a customized stack.
Diameter is sized to fit typical large chewable pills such as US Antacid pills, but could be scaled down as desired.

(I got the cap & thread someplace years ago in a different size and can't find the listing any more. So thanks to that source, and I'd credit you if I could find it! Sharing this design that I'm using myself to pay it forward.)