The simplest of tools, use the pressure of your palm to roll the ball and pulverise your spices.

Tested and approved by our London kitchen. Carved from solid blocks of marble with a brass-clad cast iron ball.Turned Morwad marble bowl,  with a brass etched logo on the base. Brass ball weighted with an inner cast iron core, polished and left unlacquered.   A Chopping Board and Pestle & Mortar are also available.