Kind of a weird business plan. Is this really a valuable service? This is what you get for $16(medium plan)...
The right amount of Regular tampons for your cycle.
A handful of Always Regular and Nightime pads.
A few Pantiliners, just in case. Wear them before, during or at the end.
Some delicious treats.
Includes Shipping & Handling
Looks like maybe $5 in stuff, in exchange for tracking, and probably marketing. It doesn't even look convenient. You're tied to company to get your stuff on time(hope they get it right during early irregularity) instead of stopping in any store, anywhere.