This shower threshold dam can be pasted on flat and smooth tiles, glass, plastic, metal, and ceramic materials.Installation Steps: 1.Wipe off the water and dust on the floor or the countertop. 2.Determine the position of the water strip dam and mark it.Cut the length asyou need. 3.Peel off the adhesive strip and install the water barrier in the marked position and press for tight seal. 4.Use the silicone caulk to seal the edges to achieve better waterproof effect.5.The sealing silica gel needs to dry after 24 hours, so it is not allowed to move or touch water within 24 hours.