The RLPEN is the same great pressurized pen as the RPEN. Featuring a lanyard conection, the Pressurized Metal and X-ray detectable, retractable ink pens with pocket clip are made from a shatterproofdete table plastic. These pens contain no small parts or springs – complying with related food processing regulations regarding small parts. Being pressurized, they are designed for use in cold, freezing, dusty or greasy applications and will write down to zero degrees Fahrenheit. Available in seven different body colors and four ink colors. Sold in boxes of 25. Made in USA.