Firing chamber is 4- 1/2" in diameter by 1- 3/4" high. Outside measurements are 6 -1/2" x 3 -1/4" high (which is 16.5 cm x 8.25 cm). Top quality construction.
Firing chamber is 2-3/4" in diameter by 1- 3/4" high. (Exterior dimensions are approximately 4.5" diameter by 3.375" high). Top quality construction. A small Microkiln is the same size as a Fuseworks kiln.