A Clear Glass Bowl with an 18mm joint opening is a convenient accessory for any water pipe or bong that requires a bowl piece. The bowl is made of clear glass, allowing you to see the contents of the bowl as you smoke. The 18mm joint size is a standard size, making it compatible with most water pipes or bongs. The bowl is designed for dry herbs, and its deep bowl shape allows for larger amounts of herb to be packed in at once. It also allows for extended smoking sessions without the need for constant repacking. The bowl contains small holes, also known as "carb holes" or "airholes," that are located on the sides. These holes allow for airflow and oxygen to mix with the burning herbs, producing a smoother and more flavorful smoke.

Overall, the Clear Glass Bowl with an 18mm joint opening is a convenient and high-quality accessory for any smoking enthusiast looking for an easy-to-use and durable bowl that provides smooth and flavorful hits.