This product is made of photosensitive resin, non-injection molded parts. This product are 3D printed products, some models need to be simple bonding. Will not be “will not be assembled, assembly difficulties” as the reason for the return! All products may exist in the store, manual processing, or sanding removal of support traces and other unavoidable circumstances. Good friends, we will try our best to package carefully, but we can not guarantee that there will be no small pieces or small broken pieces during transportation, need to fix it yourself manually with glue. If there is no ability to repair, Please think carefully before ordering. The 3D printed white tank model needs to be assembled by hand. Our store are the new store, we do not have any profit. If you have a not bad shopping. Experience in my store, please give us 5 star. Thanks for your cooperation! We will do our best to solve your. And I think we will be good friends, Thanks for your understanding! Also, the each additional item means exactly the the same color and size. Please allow 1-3mm error due to manual measurement. The colors may have different as the difference display, Please understand. Manufacture: China, Chinese Factory Homegrown products for Sale. We will reply to you within 24 hours. As soon as possible. You would like to give a.