Dam dimensions: 100 x 3 x 4.8 cm. It can be easily cut to the desired length. Long, flexible design allows for various shapes. Provides a shower barrier and water retention system to keep water contained within the threshold. Ideal for frameless showers and other areas where water containment is needed. Customer Note: For optimal stability, follow the installation instructions carefully when installing the water retaining strip. Installation steps and precautions: (1) Clean the floor thoroughly and ensure it is completely dry. This step is very important. (2) Determine the installation position of the water retaining strip and mark it on the floor with a pen. (3) Remove the backing tape from the water retaining strip and apply it to the floor along the marked line. (4) Use adhesive to seal the areas where the ends of the strip meet the wall, and smooth out excess adhesive for a clean finish. (5) Allow the adhesive to cure for 24 hours before exposing to water to ensure secure bonding. Package includes: 1 piece (1 meter, white)