Brand new and wonderful The long, bendy design creates all kinds of shapes. Shower barrier and retention system retains water contained in the threshold. Ideal for curbless showers and other places where water should be contained. This product comes with self-adhesive, smooth to install,it is close to the floor and does not leak water. Specifications: Material:Silicone Color: white / black / clear / grey Height:12mm;width:20mm Length:30cm/50cm/100cm How to use: 1. Wiping off the water and dust on the ground. 2. Determining the position of the water keeping strip and mark it with a pen on the ground. 3. Remove the adhesive and establish the water barrier in the marked position. 4. Seal the rubber strip at the function where the 2 ends of the water retaining strip are in touch with the wall. 5. Apply glue on either side of the water stopper and train evenly. Package Included:1 x Water Stopper