Klink-aan-Klik-Uit Stekker covers (APA3-1500R)

With a little help of the internet you can change a CoCo switch (Kaku (klik aan klik uit)) so switch you central vantilation system.
Details made by someone else are here:

http://td-er.nl/2015/04/02/centrale-afzuiging-draadloos-op-afstand-bedienen-middels-kaku/

I quickly designed two covers to cover the holes that are open when you remove the plugs from this switch housing.
Really easy to design yourself, but easier todo download it!

Diameters of round plates are:
inner 39.5 mm (+2mm