Connecting door fronts

THANK YOU!!! Exactly the ones I mean. Yes, that's right, I have pull-out shelves inside the pantry cabinet; I will check whether the rails are not too thick. For normal hinged doors with shelves, these rails should be the preferred choice. Strange that you can't buy them as standard items at Ikea. And what do you use if the rail is too thick for pull-out shelves or refrigerator doors? Do you then use a hole punch from the hardware store? Regards Section Chief