This is one of the newest glass products on the market, only a couple years old, a bubble cap. This is a bit of an odd looking glass piece, and may need to be suggested to your patients. So what does this bubble do? When using concentrates in a dab rig, the oil is placed in a hot bucket to turn the product into vapor. When this occurs the concentrate cools the bucket where it is initially dropped. So the bubble cap is used to create subtle airflow to move the concentrate around to hotter portions of the bucket. It is important to make sure the bubble cap is truly round or it will not create enough of a seal to function well. Bubble caps are a great tool to have an enjoyable consistent experience. This also helps conserve the user’s concentrate as all of the product will get used each time the user takes a dab.