please allow 1~3cm error,Because measured by hand.suggest 1 or 2 size

• Orders ship within 5 to 10 business days.
• Tip: Buying 2 products or more at the same time will save you quite a lot on shipping fees.
• We understand how important it is to receive your order promptly. That's why we offer fast and reliable shipping options to our customers.
  • All orders are processed within 7 business days. Once your order has been processed, you will receive a tracking number via email so you can track your package.
  • We offer standard shipping and expedited shipping options, depending on your needs. Standard shipping usually takes 7 business days to arrive, while expedited shipping usually takes 4 business days to arrive.
  • Please note that we cannot be held responsible for any delays caused by the shipping carrier. If you have any concerns about the delivery of your order, please contact us and we will do our best to help.

• If you're not 100% satisfied, let us know and we'll make it right.
• We strive to provide you with the best shopping experience possible. If for any reason you are not satisfied with your purchase, you can return it within 7 days of the delivery date for a refund or exchange.
  • To be eligible for a return or exchange, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
  • Please note that certain items, such as personalized or custom-made products, are not eligible for returns or exchanges.
  • If you have any issues with your product, please contact us at khuong@engineer.com and we will do our best to resolve the issue.
  • All products sold on come with a 7 day warranty against defects in materials and workmanship. If you believe your product has a defect, please contact us and we will be happy to help you.