At Tang Tech, we believe in providing the highest quality products at a very affordable price. We strongly stand behind our products and want to keep you happy. If there are any defective issues, please let us know and we will gladly exchange the product at no additional cost to you! We have a long line of products and we are still under the process of adding additional items, including our new line of Performance Car Parts as well as more Toner Cartridges. If you cannot find the item you are looking for, please send us an email and we will help you double check our inventory for availability. If you have any questions, please feel free to send us an email at TangTechs@gmail.com and we will promptly (less than 24 hours) respond to your inquiry. We look forward to working with you! Thank you.