Three (3) vintage Streamline olive green plastic buttons on their original card. Size 20 (1/2" or 12.5mm) circle with a deep channel running lengthwise through the center and curved sides giving them a wavy appearance. The color is two-tone with a slightly lighter shade on one half. Flat back. Two-hole sew-through. The buttons are sewn to the card with staples. Made in Italy. Washable. Very good condition.