High Quality Materials: The bathtub stopper is made of stainless steel and silica gel, well made, sturdy and durable, and can achieve perfect airtightness. Safe and Harmless: Bath tub drain plug are rustproof and corrosion resistant, they have no pungent taste, are non-toxic and very durable, and long-term use will not affect the effectiveness of the product. Easy to Install: If you need to keep water in the sink, use a drain plug to block the drain hose, when you need to drain the sink, just remove it. Applicable Size: The bathtub drain plug is suitable for 40-45mm drain holes, and the high-density silicone does not leak water. Wide Range Of Uses: It can be used in kitchen sinks, bathrooms, sewers, bathtubs, sinks, etc.