Midsize square lamp Horizontal rib block design Satin crystal finish on solid glass HD12, HD17 or HD26 fuel cell is recommended (regular wax tealights and votives may cause breakage due to thermal shock)Fuel cells HD8 and HD15 may also be used as an alternative Hand wash with warm water and mild detergent (do not put in dishwasher)4 1/8" high x 2 7/8" square