Sticking
I put these on a gently used pair of shoes today they seem to work great however I noticed there is no way to clean the sticker off and reapply it it's not like it's a silicone product that we adheres itself to the shoe so I'm assuming these can only be used once. In deep research on the website it did not indicate the answer to my question so that would be my only feedback for this company, that they make a product that is reusable instead of one time sticking in a shoe. The challenging part is if you have to restick it a few times you are always losing stick every time you maneuver the insert. For the cost of the product it should be reusable.