Comparison : Item # 8054-40, Tissue Grinder, Tube, Tenbroeck, 2mL
Item # 8054-42, Tissue Grinder, Tube, Tenbroeck, 7mL
Item # 8054-44, Tissue Grinder, Tube, Tenbroeck, 15mL
Item # 8054-46, Tissue Grinder, Tube, Tenbroeck, 40mL