Will be shipped in a white business envelope with " Your Amazon Order " stamp in black print , via USPS without a tracking number. Before using, it is reccomended to wash the gaskets in warm soapy water. Made from food grade Silicone Rubber, grey colour Compatible with Most Oster Blenders and Osterizer Blenders, may not fit all models All USA orders will be shipped from USA via USPS First Class with a tracking number.Buyer pays for all return shipping. This is an After Market Item and not an Original Equipment Manufactured item, All the Brand names and trademarks are used for Reference Purpose only. This product is not endorsed or sponsored by Oster or any other Original Equipment Manufacturer, nor there is any intent to imply that this is an original equipment part. Additional Details ------------------------------ Brand: Fab International Color: Gray Label: Fab International LLC Manufacturer: Fab International LLC Package quantity: 2 Publisher: Fab International LLC Studio: Fab International LLC Warranty: Limited to product replacement and refund only , from 30 days from the date of purchase. EAN: 0028672086542