Freemax's Fireluke 2 Sub Ohm Tank sports a base diameter of 24mm, and an overall height of 47.8mm. It does come with a wide bore 810 drip tip, so you'll be able to use most of your favorite custom drip tips in that size.
Its maximum e-juice capacity is 5ml, and can be filled quite easily thanks to its sliding top fill design. Like many vape tanks, this one features bottom airflow, which is fully adjustable.