This is a non electric yogurt maker which includes the thermometer,insulated flask, Yogurt container.

It is perfect condition & is vintage.

So simple to use, it makes it itself all you do is add a dessert spoon of live natural yogurt from a previous homemade batch or buy a commercial one to start the process to 1 litre of milk heated to 50 deg Centigrade then keep it warm & undisturbed for about 5 hours to thicken & turn into yogurt , then refrigerate.