How it works
Every Weidian item has a number, the itemID. Agents open the same item from that number, each with its own address. The converter reads the number from the link you paste and builds the address for each agent. If the item is in the rep spreadsheet, it also links to its page here, with colours, sizes and QC photos.
Which link should I use?
Use the agent you already have an account with. If you have none yet, see the agent comparison; new accounts usually get shipping coupons.