This is a glass ash catcher with 8 Arms Percolator that mass of 188g. In addition, its inner core has a 8 arms design, which can better foam the water and allow the steam to enter the pipe more smoothly.There are three colors of blue, green and clear to choose from. Its joint size is 18mm while the water pipe joint is set up on 90 degrees, and the joint gender can choose both male and female.