Thick, reliable, and thermal what more could you ask for? The thermochromic banger is great for any given sesh due to it's state of the art tech. The thermal part retains the heat and keeps the heat application short, letting you enjoy the hits without the hassle of applying heat after every use. This color changing banger is perfect for beginners who don't have much experience heating up bangers.  Color Changing Thermal Banger The amazing features don't stop at the thermal part, but with the sand inside the color changing thermal quartz banger with sand. The sand will change color when its fully heated and the sand will change back when the banger is cool again. This allows for a perfect setting for the dabs and a quality smoking sesh for you.