You can use any standard tea lights in each warming tray. The warmers are made of a copper finish metal, with patina and some finish wear.The hand blown glass carafettes are in very good condition with no chips or cracks. There are some scratches in the copper painted banding on the neck but only visible when you lift it up against the light. I took a close up picture of such an area. The handles are black plastic, and attached to the carafettes with a copper band. The copper cork tops are clean and are in like new condition. These individual serving carafettes will be the perfect mid century accessory for your next get together. This item is made of metal.