Natural shell buttons, approximately 17.5mm across and ranging from about 0.75mm to 2mm thick. As you can see, these are irregular both front and back, and most are not flat. They have a slight iridescence and many have a faint greenish-gold tint. Feel free to indicate if you prefer your buttons to be on the thinner or thicker side.
I take care to pick the best available buttons for each order but, since shell is a natural material, there may be slight imperfections and variations in colour. Please wash with care - avoid using acidic cleaners and tumble-drying.