Specification Brand : Liquid Fungi BulletPoint1 : fit's a 1/2 inch hole perfectly BulletPoint2 : autoclave and pressure cooker safe BulletPoint3 : industrial grade thick red rubber BulletPoint4 : lasts through repeated use BulletPoint5 : 5.Normal using: Can be used to block glass ports, pipe mouths, fish tank openings, etc. Color : Red ExternallyAssignedProductIdentifier1 : 0310003800997 ExternallyAssignedProductIdentifier2 : 310003800997 ItemName : Red Heavy Duty Self Healing Injection Ports (50) ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 9 inches ItemPackageDimensions_Width : 6 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-rubber-stoppers Manufacturer : Liquid Fungi Material : Rubber ModelNumber : a19071500ux0528 NumberOfItems : 50 PartNumber : 145283 ProductDescription : Heavy duty self healing injection ports made from high grade red rubber. They are large and extra thick autoclavable rubber stoppers, which last ten times as long as any other we have used. They stand up remarkably to repeated sterilization runs in the autoclave or pressure cooker. Use a 1/2 inch drill bit to make holes for these. ProductSiteLaunchDate : 2021-01-19T17:24:23.756Z Size : 1/2 Inch SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 52150000