18-01-11, 02:52 PM
OK, first of all, this is a picture from a website. These are not my shoes. 
Anyway, I have some of these. Basically doubles the amount of floor/shelf space. There is a tab that flips up behind the heel of the top shoe (not flipped up on this photo) to keep it from sliding back.
Anyway, I have some of these. Basically doubles the amount of floor/shelf space. There is a tab that flips up behind the heel of the top shoe (not flipped up on this photo) to keep it from sliding back.

