This ad features a random selection of 2 (Two) glass slide bowls from my pile of bowls I have. The bowls you see in this picture are ones I am starting with, please note, the choices of bowls will change constantly as I sell and add bowls to my pile. So, what you see, may not be one of the bowls you may get. I will try to change my photo as I sell the majority of what's in the picturesThese slide bowls are all 14mm but have visual defects such as over fuming, light frit application, uneven tops or other minor visual issue which keep them from top shelf status. These slides function fine and have no defects that prevent them from functioning properly, the defects found on these are visual only and can be viewed as giving the item a character all its own :) ! These slides vary in design, as shown and all have average to large sized tobacco bowls as shown. These slide bowls are for Tobacco Use only.