Designed to satisfy the basic requirements for performance and detectability by metal and x-ray monitoring systems used in the food industry. Produced with food contrast blue plastic shell, and… [Read more] an end cap that matches the ink color. Choose red, blue, green, or black ink in a standard cartridge. Ridges at the point of grip to make pen easier to hold firmly in wet and greasy work environments or with gloved hands. Includes pocket clip. 50/box.