For a better seal, it is necessary to use silicone sealant to fill the edges of the water barrier and dry for 24 hours until the sealant is solidified (our product does not include silicone sealant). The height of the shower threshold strip is only 0.47 inch / 12 mm, which does not cause movement obstacles. The bath splash guard can only be installed in a straight line and cannot be bent. At the corners, we recommend cutting at a 45-degree angle and splicing at 90 degrees for pasting, which will make the adhesion more durable and strong. Easy to Install: First clean and dry the counter (or floor) surface. Measure and cut the shower water stopper to your desired length. Peel off the red adhesive backing strip and stick it onto the smooth surface. In cold weather, you can use a hair dryer to heat the adhesive for better stickiness. For a better seal, apply silicone sealant along the edges of the water stopper barrier and allow it to dry for 24 hours until fully cured. Solve Water Leak Problems: The water dam barrier provides excellent waterproof performance. It can be used on shower floors, shower trays, kitchen sinks, under bathroom doors, bathtub edges, around washing machines or toilets to create a water barrier, effectively preventing water flow and achieving wet and dry separation. Environmentally Friendly Silicone Material: The shower water barrier is made of high-quality solid silicone that is waterproof, safe, odorless, heat-resistant, and wear-resistant, ensuring long-lasting use. The shower threshold barrier is also soft and flexible, can be cut as needed, and has a smooth surface that is easy to clean, helping keep your kitchen neat and tidy.