Bernafon ProWax MiniFit filters

How do you replace a filter? You hold the hearing aid by the speaker and pull the dome off with your thumb and forefinger. Then you take a Black stick from the package. There is a Black end on one side of the stick. White end on the other side. You push the Blacke end into the filter of the speaker, it stays there, so that when you extend the Blacke rod, you immediately pull the filter out. Then you turn the Blacke rod so that you push the white end into the speaker. This will then automatically stay in the speaker when you pull the Blacke rod back.