It’s crucial to have the correct joint size; otherwise, the bong session won’t happen. To measure the joint size, you can use a dime coin. If the joint size is the same size as a dime, it’s a 14mm joint. If the joint is smaller than a dime, it’s a 10mm joint, and anything larger than a dime is an 18mm joint.
Specifications:
Length: 4 inches
4.5 inches
5 inches
Female Joint Size: 18mm
Fit for all 14mm Bowl