Included: 4 bathtub sink stoppers, two colors, gray*2 and black*2. The quantity is enough to meet your daily needs. Material: The sink stopper is made of silicone, which is soft and elastic and can effectively block the sink opening. Universal Size: Universal size for bathtub drain stoppers, the diameter of the upper end is 4.5 cm, the length of the spiral part is 2.9 cm, and the diameter of the lower end is 2.9 cm. Easy to Use: There is a handle on the head of the silicone drain stopper, and you can pull it out easily; There are threads on the bottom, which is easy to install, can be well sealed, leak-proof, and odor-proof. Widely Used: The silicone stopper is suitable for most drain pipes, kitchen sinks, washbasins, bathtubs. No more worrying about hair and other clogs going down the drain.