Three (3) vintage Streamline white plastic buttons on their original card. The shape is a slightly rounded rectangle measuring 1/2" (13mm) x 3/8" (10mm). The center is slightly concave and skewed sideways with two corners that curve up and two that curve down (hard to describe, please see closeup photos for details). The backs are flat with a slightly angled edge. The buttons are attached to the card with metal staples. Made in Italy. Washable. Near mint condition.