This is a 18

it has a 14mm female joint with an included 14mm male herb slide

This Roffu Mouthpiece Top is made of high-quality materials

This 2-piece grinder measures 2 inches wide

Available in gold

MAV Glass Bent Neck Showerhead Bubbler Color:Black This is a 18Simple in design and easy to use, the 9 inch tall Bent Neck Showerhead Bubbler will provide you with a smooth hitting smoke sesh. This portable bubbler is made of high quality glass. The bent neck of this piece not only looks cool, but it also serves as a splashguard makes hitting the pipe comfortable. The bubbler is equipped with a standard 14. 5mm female joint and a fixed downstem that leads to a showerhead percolator. It comes ready for use with a