Tissue Grinding Systems, 50mL. Closed system minimizes sample contact. Molded-in abrasive surfaces leave no obstructing sediment. With our closed tissue grinder systems, you seal before grinding to minimize sample contact through aspirations and overflow. The abrasive surface is molded-in, so there’s no sandy sediment to obscure the sample. Systems include polypropylene tube, high-impact polystyrene pestle and tip and new antiroll HDPE cap. Supplied assembled and sterile. Packaging: 10/Case.