When your Rite In The Rain All-Weather Pen runs out of ink, grab this refill and keep on writing. Its the ideal writing companion for any Rite In The Rain writing pad or notebook. With this refill, the All-Weather Pen writes through water, grease and mud, using permanent ink that wont clump or smear even in the wettest conditions. The all-weather cartridge writes in temperatures from -30F to 250F. It even writes upside down. The proprietary ink wont leak, evaporate, or blow up in your pocket. Black ink. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Weather Accessories.