Sōteijutsu (装丁術, literally meaning: Binding Techniques) are a type of jutsu that seal inanimate objects (usually weapons) to a part of the body via a contract. These items can be later summoned. Simply put, sōteijutsu is like a combination of fūinjutsu and summoning techniques. It uses the properties of sealing one object within another, together with the properties space-time ninjutsu to create this technique.