Replica catapult, the installation method is shown in the pictures. The printed socket may have different accuracy due to different machines, you can use glue to stick it or splice it together. The loading device of the catapult can use the bottle cap of ordinary drinks, which is more convenient and doesn't need to be printed. The items to be delivered can use 1-cent or 5-cent coins, or you can print a No.1 ball. Prepare a leather case, first wrap it around the center hole of No.7, and then tie it with two lines to the notch of No