Variations pricing – price x2 when specific attribute is selected

I need help configuring variations pricing.
For example, I have sizes from 20-50 and each size has different price. But now I want an option when selected , that pricing goes x2 . So if yomething is $20 for size 20, if this specific option, attribute or whatever is selected, price needs to go 2 times, so price would be $40.

How to configure this , do I need specific pluginor i can do this somehow else ‘
Please advise.
Thanks

https://www.ads-software.com/plugins/woocommerce/