Talbert Pipes Ligne Bretagne Shape Notes Shape 100 Notes: The shape 100 is, to my eye, beautiful - it has a gentle elegance to the curves that I like very much. The shank is oval, and the bowl tilts forward very slightly. While not one of the larger LBs, it offers a good-sized bowl capacity for small overall proportions. Benefits of the shape are its light weight and looks. The main drawback to these bowls is that they are not very thick in the walls, so deep sandblasts are not possible - for this reason, it is doubtful that there will ever be any high-graded shape 100 blasts, nor any rusticated 100s.