0.125 x 0.75 x 0.75." "Plastic skin button with traditional button shape with four holes present and housed in an unmarked plastic bag. Skin Buttons provided access to the body for tubes which led to and from the Thoracic Duct and made lymph dialysis possible. Ultimately they were used in lymphocyte depletion prior to transplant. (See assorted papers in T.S. Hargest's CV on lymphocyte drainage-skin buttons paper-#17." T.S. Hargest. CV)"