Button "Akoya waves" 13 mm

Round two-hole button, in shell (Akoya), pretty black and white patterns to give an optical illusion in the shape of circles. 
Easy button to sew on all your clothes.   Akoya buttons (pearly shell) Size: 13mm Made in France Care instructions: Before pressing or dry cleaning your garment, it is best to unscrew the buttons. 
If you put them in the washing machine, wrap them in household aluminum foil, wash the garment inside out to avoid shocks, do not soak, spin gently, hang out immediately.
 What is Akoya? :A type of oyster, it is a naturally iridescent and pearly shell found in Japan.