Got back to thinking of this thing again (yes it's still unoccupied). Really believe it'd be best suited for a lizard since it's not super tall and already has a tube fixture for UVB, but I'm unsure about the drawer thing itself in regards to if a lizard could get in and out or if they'd get stuck. Did measurements and the circle is 5 inches in diameter and the height from the bottom of the drawer to the top of the hole is 7 inches. Maybe I could glue a stack of rocks or something just below the hole to serve as steps?