These stones have been cleaned with medicated soap (using a brush), sterilized with boiling water and ethanol, and then dried before being painted and dried again. ☺︎ Stone art, stone painting Stone art, stone painting This is stone art featuring goldfish. *° This is a hobby of an amateur, so it is not perfect like a professional artist's work. Please check the condition, size, and color in the images. m(*_ _)m Rulers and sea glass are not included in the items for sale. Thank you for your consideration. Goldfish and duckweed