The AEON blind plug can simply be inserted into the AEON hose end pieces to close a hose end piece. For example, if smoke should come out of other hose end pieces when you blow heavily on your Edition 4, you can simply insert the blind plugs into the hose end pieces and thus close the hose end pieces so that no more smoke can come out here. The AEON blind plugs are simply pushed into the hose end piece from above.