Stone rectangular prisms for seal engraving, with a greenish hue. - Size: Two rectangular stones Left side: Approximately 1.8 cm square, height approximately 7 cm Right side: Approximately 1.5 cm square, height approximately 5.8 cm - Material: Stone - Use: For seal engraving - Color: Greenish hue - Shape: Rectangular prism These have been stored in this condition for a long time, so they are in a condition with no noticeable scratches or stains. Thank you for looking.