Duty/ import charges on Invisalign trays

Hi!

I get Invisalign treatment in Poland where I’m from. My orthodontist sent new trays to my home address. My family will ship them to me to Switzerland. What kind of duty should I be expecting? It’s only partial trays It’s impossible to declare value to it. Im kind of scared it’s get charged a percentage of my entire treatment in which case it’s probably cheaper to fly and collect the trays myself.

Does anyone have a clue of what to expect?

Thanks

M

Surely you can arrive at an imputed value.
And then:
https://swissfamilyfun.com/send-gift…80%9D%20status .