Welcome to I'm Obsessed, a daily video series with Kahlana Barfield, InStyle's fashion and beauty editor at large. Check back every weekday to learn more about the beauty products and tools she can't get enough of.
Dress your desk with Muji’s super affordable gel ink pens. Available in a rainbow of hues, these fine tip tools come in a translucent plastic shell that lets you easily see your favorite gel of choice. The fine tip technology also makes it easy to write with, meaning they not only look good, but they also get the job done.
Shop it: 9-colors pack, $11; amazon.com.
Watch the video above to learn why Barfield is obsessed with them—and visit instyle.com/videos tomorrow to see what else she's in love with.