These Thermal Core Reactor Quartz Banger Nails feature a combination of two very popular dab nails. The thermal double wall design allows for larger dabs without wasting any by getting sucked into your rig. The core reactor puck in the bottom of the banger allows for much better heat retention and better vaporization. The combination of the two makes this dab nail a must have for any true dabbing enthusiast. These Thermal Core Bangers work well with a variety of different carb caps. Featuring a sanded joint.