High Temperature Resistant Solid Silicone Cylindrical Hole Plug Push in Feet Round Rubber Sealing Stopper for Small Holes. Food Grade Silicone Material: Made from healthy, environmental, anti-corrosion, heat resistant, waterproof, and high wear resistance silicone. Tight Seal for Fermentation: Prevents oxidation for beer, honey, white wine, and milk alcohol fermentation by isolating air. Versatile Application: Suitable for agricultural, industrial, medical, vehicle, electronic, and household uses. Multiple Color Options: Available in white, black, clear, and other colors to match various requirements. Customization Services: ODM and OEM services available with customization from designs or samples. Fast Lead Time: Peak and off-peak season lead times are both within 15 workdays. International Certifications: Certified with ROHS, SGS, and ISO9001 standards for quality assurance. Manufacturer Direct: 20 years of experience with in-house R&D, production, and design capabilities.