pen holder for blouse for 3 pensPen holder for lab coat 3 pens 6 15 mm General characteristics: Insert the clip firmly into the edge of the pocket For pens with a diameter of 6 to 15 mm Usage tips: Take the pen holder out of its box and insert it onto the edge of the chest pocket Leave the clamping rings facing outwards Push the pen holder all the way in Insert your pens into the clamping rings as needed Always insert and remove pens from the top.