MicroMesh™ Cassettes have a plastic mesh design that eliminates the need for biopsy bags and sponges. The small pore size of 0.38 mm allows for efficient fluid exchange and drainage while keeping small biopsies secure. 45° labeling surface, hinged lid, rear tab. All lids attached. Bulk, 1,000/case. Sleeved, 750/case. Taped, 2,000/case.