Three (3) vintage Lansing plastic buttons on their original card. They are slightly smaller than the 3/4" listed, closer to 11/16" and exactly 18mm. Chunky circle, about 3/16" (5mm) thick, with a white center that has a slightly textured surface. The rim is dark gray and appears to wrap around the white center to the back. The holes are set within tiny gray squares near the center of the top. The back is very slightly curved. Two hole, sew-through attached to cards with thread. Made in Japan. The card has been trimmed across the top right corner; the buttons are in very good condition.