Easy to Install: Clean and dry the surface before installation. Measure and cut the shower water stopper to the desired length. Peel off the red adhesive backing and apply it to a smooth, flat surface. In colder temperatures, use a hair dryer to warm the adhesive for improved bonding. For best results, apply a silicone sealant along the edges of the water barrier and allow 24 hours for full curing (silicone sealant not included).Solve Water Leak Problems: The water dam barrier provides effective waterproofing. It can be used on shower floors, shower trays, kitchen sinks, under bathroom doors, bathtub edges, around washing machines, or toilets to create a reliable water barrier, preventing water spread and enabling wet and dry separation.Environmentally Friendly Silicone Material: Made from high-quality solid silicone, this shower water barrier is waterproof, safe, odorless, heat-resistant, and durable. The material is soft and flexible, allowing for custom cuts as needed. The smooth surface is easy to clean, helping maintain a tidy and hygienic environment. Note: This product is designed for straight installations only and cannot be bent. For corners, we recommend cutting both pieces at a 45-degree angle and joining them at a 90-degree angle for a stronger, more durable seal.