Specification Brand : dexierp BulletPoint : 20mm Snap-On Rubber Stoppers 100pk BulletPoint1 : Top Side Can Be Easily Drilled Holes, Cut Split To Do All Kind Purpose By Our Hollow Stopper Desigh BulletPoint2 : best to fit ID 2-3/16" To 2-13/32" 55mm to 62mm hole BulletPoint3 : plug big OD 2.520" 64mm small OD 2.125" 54mm length 1.000" 25.4mm BulletPoint4 : Silicone Rubber for high temp to 400 F/200 C. Can Be reused many times for Powder and E.D. Coating, Painting, Cerakote, Anodizing, Plating, Media Blasting, Sealing ,Custom surface treatment and protection Supplies. No color and smell contamination .No Dissolved matter BulletPoint5 : Material support for boiling Steam UV light alcohol immersion Autoclave Sterilization process for safe, clean and Reusable applications Color : Black ExternallyAssignedProductIdentifier1 : 618952818675 ExternallyAssignedProductIdentifier2 : 0618952818675 ItemDisplayDimensions_Length : 22 millimeters ItemName : dexierp Protection Force Hollow Stopper Plug for 2-1/4" to 2-3/8" 56-61mm Hole (Pack of 1) Tube Bottle Openning M62 M64 Thread Nut Paint Masking Reusable Silicone Rubber ItemPackageDimensions_Height : 11.7094 centimeters ItemPackageDimensions_Length : 2.8956 centimeters ItemPackageDimensions_Width : 11.6078 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-rubber-stoppers Manufacturer : Protection Force Material : Rubber ModelNumber : 43237-2 NumberOfItems : 1 PartNumber : HSTS2520-1 ProductDescription : For any other seal size, material, type, custom molding and quantity discount price, Please leave message in bellow AMAZON-Customer questions & answers, Our online customer service will reply to you at once. ProductSiteLaunchDate : 2020-07-15T08:04:08.783Z Size : 55-62mm(2-1/4") SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1