Will be shipped in a regular white envelope with a Red Stamp saying "Your Amazon Order Order Inside" via USPS First Class without a tracking number. Wash all gaskets with warm water and soap before using. Will be shipped in a white business envelope with a Window without a tracking no. Via USPS First class. With a Black Stamp saying "Your Amazon Order." Before using, it is reccomended to wash the gaskets in warm soapy water. Approximately Outside Diameter: 80.6mm Inside Diameter: 75.5mm thickness 3.2mm Made from food grade Silicone Rubber All USA orders will be shipped from USA via USPS First Class with a tracking number.Buyer pays for all return shipping.For all Undeliverable orders the sale will be treated as complete, Please measure your blender blade if the diameter is 3.25 inch than only will this gasket fit. If it is 4" you need to buy Nutri Bullet gasketsThis will not fit Baby Bullet, This will not fit Nutri Bullet. This is an after market product and not an OEM product.We make no claims that these are original Magic Bullet products. We are not associated with Homeland Housewares LLC. Additional Details ------------------------------ Brand: Fab International Color: White Label: Star Rubber Products, Goregaon, Mumbai, India Manufacturer: Star Rubber Products, Goregaon, Mumbai, India Package quantity: 4 Publisher: Star Rubber Products, Goregaon, Mumbai, India Studio: Star Rubber Products, Goregaon, Mumbai, India EAN: 0028672086634