This kit contains everything you need to solder, but the power supply itself (and flux, and solder sucker, but those are optional).
The helping hands of the system is an Omnifixo and its what the system is built around. As well there is a Pinecil V2, a solder roll, two tips, a USB-C cable, and finally a tiny sponge and stand. The Omnifixo is attached via its own magnets and small screws with pre-drilled holes in the print.