Your standard PENpal comes with a turquoise silicone-rubber sleeve for protection against impacts, and to make it easier to keep the pen clean.
You can buy several sleeves of different colors to help tell your pens apart if they have different content, or request a different color when you purchase a standard PENpal.
The sleeves come in 5 colors: red, black, purple, turquoise, or yellow.
Please specify the color you want with your order in the "Comments" section when you check out.
Price is per sleeve.
See cleaning-instructions under the "Additional Information" tab.