2 Wolford Clear Hand Blown Glass Company Floating Oil Lamps Still Work I left these wicks in for demonstration purposes .New Wicks can be ordered online . I left these used wicks in for demonstration purposes only. I did check online and found several places that the wicks could still be ordered. I do not know excatly what type of oil you would use in them. There was just a little bit of oil in one of them when they came to me .That's how I know they still work. I have to say they were very pretty when lit. The glass has no scratches or flaws. 6 in tall 3 " diam