2 pieces of 20*20cm will be sent. Our product is not a glass mirror, it is a decorative mirror plexiglass with a mirror effect. It is very simple to use, the adhesive protector on the back surface is removed and adhered to the cleaned floor (wall, furniture, wood, metal, etc.). Versand724 reserves the right to cancel orders over 15 units. More than 50 stocks are offered to be sold at the campaign price.