The stainless steel Bessman tissue pulveriser consists of a two-component mortar with handles and a pestle, specifically designed for pulverising 10 - 1000 mg of tissue.

After chilling the pulveriser in liquid nitrogen, the included 28 cm lead hammer is used on the mortar to completely homogenise the inserted sample. The sample can then easily be transferred without touching or thawing by removing the mortar and inverting the pestle assembly over a test tube.