The mug is made of a special kind of porcelain — bone porcelain, to which ash from the bones of bulls and cows has been added to increase strength.
The mug is suitable for whipping up solid shaving soaps such as Truefitt & Hill Sandalwood.
The nose is wide and easy to pour water into. The porcelain walls keep the water warm, the foam stays warm and softens the bristles more effectively.
The holes at the bottom of the rounded soap container allow excess liquid to drain downwards. The soap dries quickly and does not liquefy.
A non-trivial and impressive gift for the wet shaving enthusiast.