The case has some minor stains, but the item is unused. Product Features & Basic Specifications Features: The color disappears when rubbed with the rubber at the end of the shaft after the writing has dried. Since the ink of the writing is made colorless by frictional heat, there are no eraser shavings. You can write repeatedly in the erased area. Caution: *Cannot be used for official documents or addressing envelopes. *Do not leave it in a place that exceeds 60°C. The ink will become colorless. *The erased writing may reappear at around -10°C. *Depending on the type of paper, such as thermal paper, erasing may not be suitable. *Do not leave it in direct sunlight. Ink Colors: Black, Red, Blue, Green, Pink, Orange, Light Blue, Violet Product Type: Body Mechanism: Cap type Overall Length (mm): 146 Maximum Diameter (Φmm): 12.4 Tip Ball Diameter (mm): 0.5 Ink: Frixion Ink Size (mm): 147 × 101 × 14 Number of Colors: 8 colors Line Thickness: Extra Fine