Grinding container Spex small, hardened steel with puck, dish and lid made of 52-100 hardened steel, 3.6 inch diameter x 2.3 inch high, 4 lbs, 9cm x 5.4cm, 1.9kg, nominal volume 90mL, recommended grinding load 2-20mL. Includes puck, dish with gasket, and lid, must be used either one or three at a time with 8507R rack