I have a significant discrepancy between my right and left leg caused by an accident and adding a lift inside my shoe is not practical (1 inch lift puts my foot out of my shoe, not to mention the discomfort). I was thrilled to hear about the external lifts that can be added to shoes and ordered from a few companies. The first company I ordered from was nice, but my shoes started falling apart instantly so I looked for other companies. American Heelers is the best I've come across so far! Their work is guaranteed (I can mail shoes needing repair back to the company for free), but I haven't needed to send any shoes back for repair yet and I first used this company 3 years ago. Shipping is free for orders of a lift 1" and up (this is great since I live in Alaska), and the work is guaranteed. I highly recommend!!