It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately.If it's non-workdays, please kindly be patient and wait till Monday. The item "CE Multifunctional Gem Jade Cutting Carving Polishing Machine Bench Grinder 30MM" is in sale since Thursday, July 8, 2021. This item is in the category "Jewelry & Watches\Jewelry Design & Repair\Jewelry Tools\Engraving Tools". The seller is "most-tool-shop" and is located in Rowland Heights, California. This item can be shipped to United States.