Abstract: Inflation kit, especially for inflating balloons, balls and the like, characterized in that it comprises: two opposing hollow interlocking bodies, one having at least one inlet for air coming from the outside and the other body having at least one outlet for air coming from the internal cavity defined by the two bodies; an extractable bellows inside the internal cavity defined by the two bodies, through which air can flow from the air inlet to the air outlet; a valve that can be coupled to the air outlet of one of the bodies; and lastly a deflated inflatable element housed inside the cavity defined by the two bodies.