At about 4" tall overall, the slender, hand-blown glass insert is designed to project about 3/4" from the custom base. The raised lip on the reservoir stabilizes the lamp insert in the base.
Used with kerosene, also known as paraffin lamp oil (not included), the insert comes with a long-life glass-fiber wick and a small plastic funnel to assist filling. Insert fits within an 11/16" diameter hole measuring at least 3-1/2" deep.
For those without a suitable drill bit, we offer an economical high-carbon steel 11/16" utility brad-point bit separately.