Specification Brand : CALLARON BulletPoint1 : Universal 17mm Fit: Perfectly seals 17mm holes in mason jars, fermenters, and airlocks. Prevents leaks, spills, during brewing, preserving, or storage BulletPoint2 : Soft Silicone Straw Plugs: The straw cover made from food-grade, food silicone, safe for direct food contact. Resists heat up to 428°F (220°C), making it ideal for hot liquids BulletPoint3 : Multi-Purpose Silicone Straw Lids: Use as straw stoppers for travel mugs, airtight seals, or grommets for DIY projects. Just insert the silicone grommet into the hole on the mason jar lid so that the grommet groove catches on the edge BulletPoint4 : Reusable Straw Hole Stoppers: Flexible yet sturdy design withstands daily use without cracking or losing shape. Dishwasher-safe for easy cleaning BulletPoint5 : Bulk 20-Piece Set: Stock up on essential kitchen and brewing supplies. Includes 20 plugs to replace lost or worn-out stoppers or outfit multiple containers at once Capacity : 20 fluid_ounces CareInstructions : Hand Wash or Dishwasher Safe Color : B ExternallyAssignedProductIdentifier : 7026343257478 GpsrSafetyAttestation : 1 IncludedComponents : Stopper IsDishwasherSafe : 1 IsMicrowaveable : 1 ItemDisplayDimensions_Height : 0.23 centimeters ItemDisplayDimensions_Length : 0.66 centimeters ItemDisplayDimensions_Width : 0.66 centimeters ItemForm : jar lids ItemName : CALLARON 20Pcs Silicone Straw Stoppers - 17mm Straw Hole Plugs, Mason Jar Lids Plugs, Silicone Seal Fermenter Lid Grommet, Lids Airlock Grommet ItemPackageDimensions_Height : 8.509 centimeters ItemPackageDimensions_Length : 2.9972 centimeters ItemPackageDimensions_Width : 7.5946 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : canning-lids ItemVolume : 113 milliliters Manufacturer : CALLARON Material : Silicone Material1 : Bamboo Material2 : Plastic ModelName : Reusable Straws ModelNumber : O2Z2061CQGP173CT7A NumberOfItems : 1 NumberOfPieces : 6 PartNumber : O2Z2061CQGP173CT7A ProductDescription : Description Silicone Straw Hole Grommets for Mason Jar Lids Sauerkraut Kimchi Fermenter Homebrewing Wine and Beer Making Bucket Airlock