terp pearl, also known as a dab pearl or a terp ball, is a small spherical object made from heat-resistant materials, typically quartz, ceramic, or ruby. Terp pearls are used in conjunction with a dab rig or a banger, which is a type of nail used for vaporizing cannabis concentrates like wax, shatter, or oil.
When using a dab rig, the terp pearl is placed inside the banger, which is heated with a butane torch until it reaches the desired temperature. Once heated, a small amount of concentrate is placed on the heated surface of the banger, and the user inhales the resulting vapor through the rig.