Each tower Ranges between 2- 2 1/4 inches tall by half an inch to 3/4 of an inch around! 
The listing is for 1 tower.
The Third Eye Stone. A stone that combines amethyst and quartz which makes it a powerful amplifier of the Third Eye Chakra. Combining the power of Amethyst and Quartz it also helps those working on intuition.

Chevron Amethyst Tower