Thermochromic Bangers are f'ing amazing! Whether you are novice or an advanced concentrate smoker, you'd enjoy the benefits one of these have to offer. The yellowish-orange pellets, or sand... changes color to indicate the ideal temperature you should be dabbing at. Simply install the banger in your favorite dab-rig or bong, heat with a torch till the sand is orangy-red, then dab till your hearts content.