The product relies on a crucial bit of self-assembly, namely attaching the magnetic coupler to your device or its protective case. To accomplish this the product is shipped with an alcohol swab for surface prep and a 3M VHB adhesive pad pre-attached to the magnetic coupler. In my case, the package containing the swab was perforated , meaning that the swab had dried out. No big deal, I used some other cleaning pads, but when I came to open the VHB pad, I found that the adhesive layer came away from the coupler and got scrunched up as I lifted off the protective film. I applied the coupler and waited 24 hours , but I noted that the seal is not flat - not sure how long it will hold. I used the tablet holder at rehearsal, and is a big improvement on my Rat Ipad music stand, but worried that I will have to reapply the coupler soon. Hope it does not come off while I am using it.