the present invention relates to a packing for an infusion set . the infusion set for intermittent or continuous administration of a therapeutic substance , such as insulin , includes an infusion part having a cannula penetrating the skin of a patient and a connector which connects the infusion part with a medical device such as an adaptor for a syringe or an insulin pump . the insertion of the infusion part will be performed with an insertion needle which is delivered together with the infusion part under sterile conditions . the packaging includes an impenetrable part protecting the surroundings from the insertion needle and a removal part which is to be removed by the user before applying the infusion part . the inner surface of the impenetrable part is provided with a retainer for releasable retaining at least a part of the infusion set .