theBase plate & theOne bowlTo attach theBase plate or the theOne bowl, press down in the centre of the bowl or plate with your fingers or a spoon to push all the air out of the suction base. You should feel the air being pushed out when pressing down.theValle plateTo attach theValle plate, press down on the divider area in the middle to push all the air out of the suction base. You should feel the air being pushed out when pressing down.To detach, use the release tab.