Dark Orange Square 9/16" Corozo Button, Five Squares Tagua Nut "Vegetable Ivory", 15mm #SK-516
Square button with four square holes. It's almost 1/8" thick and slightly raised - 'pillowed' in the center. The back is flat. Silky finish with a bit of sheen, rich dark orange, sustainable, durable, much nicer than plastic, corozo/tagua nut. Sold per button.
Machine washable and dryable, but not too hot.