Once you have the actual suction cup (not the plastic case) flat against your wall, pull the lever down -- you will feel tension if you are applying the cup correctly. I was pretty hesitant over buying these, but no other seller who were selling similar shoes couldnt match this sellers shoes. Other then that music sounds great the comfort in ear is amazing and I would recommend them to anyone that wants a quality product to run with. Everything is still up and we have several heavy anoraks on them. I wish I could have kept these wonderful shoes. Cute as a button, super soft, and so far - durable. After this review, Im going to order the red ones! We?ve been using them for several years. There is no way I can unassemble this, pack it up, and ship it back. It comes with six separate containers each with a handle on either side and a clear window down the front.