Powis Parker cartridges for the PowisPrinter P31, are available in seven metallic colors: Gold, Silver, Black, White, Red, Blue, and Green. The foil is permanently stamped onto to strip and will not flake off. One cartridge provides approximately 200 printed narrow strips with average coverage. Your results may vary depending you image and text coverage requirements. Cartridges are packed five to a carton. Fastback Supplies.