1. Players can get a good impression by completing the task. When friends reach a certain value, it will be possible to unlock the "velvet jewelry box" props. If it is not displayed on the main interface, it means that the unlocking was not successful. You need to continue upgrading or perform tasks to open this box.

2. You can use gold coins to open the treasure chest in the game to increase the chances of success, but it is recommended to spend rationally and make a risk assessment before deciding whether to buy.

3. If all the above methods fail, you can also get the item by exchanging or trading with other players. You can learn how to communicate with others correctly, reach an exchange agreement and get the needed "velvet jewelry box" by referring to the experience of other players in Raiders.