The Case is designed to fit into a specially made plastic tube which is available at additional cost.
A very popular smaller sized shaving brush which is filled with either Best or Pure Badger Hair.
The Case Pure Badger approximate brush specifications:
Overall brush height - 79mm
Handle height - 42mm
Knot loft - 38mm
Knot diameter - 19mm
Weight - 41g
A brush that packs a lot of punch for it's size.