Wipe the wall or surface with a clean, soft cloth, then wait until the surface is completely dry.^ Remove the backing of the protective film and mount the self-adhesive toilet paper holders on the wall, then press and hold the whole adhesive surface (PS: You can heat the adhesive with a hair dryer first for a better grip).^ Please use the toilet paper holder 24 hours after assembly. The adhesive strength of the sticker is enough to bear the weight.^