This 4mm thick domeless quartz banger nail is a concentrate accessory that provides several benefits over a standard glass nail. The banger design is available in your choice of joint size (10mm, 14mm, or 18mm) and joint gender (male or female). It has a bent glass tube that moves the heat of your torch away from your vapor rig to prevent heat stress and premature cracking on the joint. The nail uses an open dish where you place your concentrates. The design of this banger quartz nail provides spacing from the dab rig, extending the life of your rig by preventing breaking that can occur when you heat directly on the joint. This domeless banger nail is made of high quality quartz and is a great additional accessory for your dab rig.