Set of 20 badge cards for pregnancy announcement / godfather-godmother request

Badge card containing a 56 mm pin badge + its cardboard + envelope. 
The badge is attached to its cardboard using 2 perforations. 
The card will be delivered in celophane, with the cardboard.   Price for the lot of 20 units (mix of 'grandparents' - 'godfather' - 'godmother' - 'uncle' - 'taty' - 'big sister' cards...)