1. High quality silicone 2. 2 in 1 design: Both drainage and prevent water flow.Press the button, it can leak and cut off the hair 3. If you to close, push on the upturned edges snaps the valve shut 4. Snug plug fits standard drains, can prevent the odor form sewer 5. Apply to 3.6 ~ 10cm hole, does not apply to a hole that have a buckle 6. Easy to wash, more environmental and less expensive than toxic chemical drain cleaners
