I don't understand exactly what "for Croatia" means... Do you mean for equipment from Croatia in Switzerland or for equipment from Switzerland in Croatia?
This adapter is intended for the use of Schuko/type-F plugs on Swiss type-J sockets. Type-C and type-F sockets are used in Croatia. In order to be able to use devices from Switzerland with 3-pin in Croatia, you therefore need the opposite of this plug. Devices from Switzerland with 2-pin are compatible with the sockets in Croatia. ->
Steffen Adapter Switzerland - Europe (Schuko, 3-pin)
