Dear customer, hello, due to the fact that our company's products are mostly heavy goods, we cannot deliver all products to all regions by courier. For remote areas, such as Xinjiang, Tibet, Qinghai, Inner Mongolia, Yunnan, etc., logistics can only be sent to their provincial capitals. If you need to transfer to your city, there will be a certain transfer fee. This transfer fee will be paid when you pick up the goods. The specific products, specific regions, and specific circumstances will be analyzed individually. For more details, please consult our customer service. If you can only send logistics, we will contact you before shipping. The error of dumbbells is 1-2kg. For specific questions, please contact customer service.