specification: The long and flexible design creates various shapes. Shower barriers and retention systems keep the water within the threshold. Ideal for unlimited showers and other areas where water control is required. how to use: 1. Wipe off the water and dust from the ground. 2. Determine the position of the water retaining strip and mark it with a pen on the ground. 3. Remove the adhesive and install the waterproof layer at the marked position. 4. Use rubber strips to seal the positions where the two ends of the water retaining strip are in contact with the wall. 5. Apply glue on both sides of the water stopper and spread it evenly. Material: Silicone Color: white/black/gray/transparent Size: 100cm/39.37in Package Included: 1pcs notes: Manual measurement, please allow 1~5mm error, thank you. Due to the difference of different monitors, the picture may not reflect the actual color of the item. We guarantee that the style is the same as the picture, please understand, thank you!