Male to Male Adapter
This male-to-male adapter from Grav Labs is perfect for those who need to connect a female nail to your female bong. You will never have to pass up that female nail that you have been keeping your eye on now that it can fit into your bong. This adapter comes in 2 sizes a 14 mm to 14 mm or 14 mm to 18 mm. Allow your bong to be more versatile with this adapter.