0.5 x 1.75 x 1.25." "Loose example of skin button made of latex. rectangular in shape with two openings for tubes to be inserted and white fabric sticking to the exterior. 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)"