Cleanroom Safe - Suitable for ISO Class 5 (FED-STD-209E Class 100/M3.5) cleanrooms. Convenient and Comfortable - Lightweight, round barrel for all day writing comfort. Avoid lost and dropped pen caps with retractable click pens. Double packaged in a cleanroom environment to ensure the integrity of your controlled environment. Ink options: Black, Red, and Blue. 10 Retractable Cleanroom Pens to a pack Harmony Retractable Cleanroom Pens with Black, Blue, or Red Ink

Cleanroom Safe - Suitable for ISO Class 5 (FED-STD-209E Class 100/M3.5) cleanrooms.

Convenient and Comfortable - Lightweight, round barrel for all day writing comfort. Avoid lost and dropped pen caps with retractable click pens.

Double packaged in a cleanroom environment to ensure the integrity of your controlled environment.

Ink options: Black, Red, and Blue. 10 Retractable Cleanroom Pens to a pack.