This support does not include a suction cup, but a round rubbery base, adhesive I placed on the clean tiles and dry .Easy to install. I screwed the white backing on this disc gently. I find that this model is much better than those with suction cups. This support comes with a second disc PVC that can be fixed to the wall with screws or stick with a silicone adhesive, a small tube is also in the pocket. It lacks the instructions on the site but amazon, photos of the product show how. This model very design.
