One of the most common ways to make money flipping items in Hypixel skyblock is to use the NPC selling method. This strategy ensures that a profit will be made in the trade. However, there is just one limitation, and that is the maximum amount that can be sold. All the items that can be sold on NPC or Bazaar have a limit of 10 stacks per day. It indicates that the maximum number of things you can sell in a day is 640. Because you need the coin money to buy other necessary supplies, this is the best approach that you can adopt early on in the game, and it is recommended that you do so.