1. Dam size: 100 x 3 x 5 cm. It can be easily cut to the length you need. 2. The long and flexible design creates all kinds of shapes. 3. The shower barrier and retention system keeps water inside the threshold. 4. Ideal for curbless showers and other areas where water needs to be contained. Installation Steps and Attentions: (1) First, please clean the floor thoroughly and keep it dry. This step is very important! (2) Afterwards, determine the installation position of the water retaining strip, and then mark it on the ground with a pen. (3) Remove the adhesive tape on the back of the water retaining strip and stick it on the ground according to the previously marked position. (4) Then use glue to fill the area where both ends of the tape are in contact with the wall to seal it, and remove the excess glue to make the contact smooth. (5) Finally, to prevent it from falling off, let it dry within 24 hours and avoid contact with water.