Grind frozen samples without liquid nitrogen hazards. Stainless steel mortar construction Nested in heavily insulated polyethylene housing Suction cup feet Polyethylene handle included on pestleA 304 stainless steel mortar is suspended by three brackets above a stainless steel bowl which holds liquid nitrogen The housing measures 16.5 cm (61/2") in diameter x 11.4 cm (41/2") high and has three suction cup feet. The recommended size pestle is any size appropriate for a 275 mL mortar. Pestle not included. The bowl is nested in a heavily insulated blue polyethylene housing. The mortar has an insulated handle, 10.2 cm (4") long, that is removable for saving space.