Feature:1. Innovative Design: Featuring a sealing ring design, this drain core prevents pesky bugs from entering the drain, safeguarding your home's health and hygiene.2. Backflow Prevention: The product boasts an effective backflow prevention feature, successfully masking any unwanted smells from the kitchen and bathroom to maintain fresh air in your home.3. Superior Material: Constructed with wear resistant silicone, the odor proof floor drain core keeps the drainage clean and odor free, effectively blocking unpleasant smells.4. Easy Installation: Designed to fit a range of drain sizes, this sewer sealing plug is easy to install, clean, and replace, convenient addition to any household.5. Safe and Long Lasting: Made from environmentally friendly materials, the silicone sink plug is safe, reliable, promising you a quality living experience.Specification:Item Type: Odor Proof Floor Drain CoreMaterial: Silicone; Plastic.Package List:1 x Drain Core2 x Seal Ring