Magic Materialization (物質出現魔術 Butsushitsu Shutsugen Majutsu) is a magical ability used to create physical matter out of thin air.
The user uses magic to generate whatever object they wish. Depending on the user, the range of what they can create varies.
Namekians of the Dragon Clan have the ability to create objects from nothing, and they use it to create everything from houses and furniture, and those who reach genius-class can also use it to create Dragon Balls.
Piccolo uses the Magic Materialization several times to create uniforms for himself and Gohan, as well as a few other items.
In Dragon Ball Super, the Grand Minister uses Magic Materialization to create a fighting ring and spectator seats for the Zeno Expo. During the Tournament of Power, Saonel uses the technique to provide Pirina with a new glove after the latter regenerates his right arm.