It looks like this:
The Marker Manager will hold up to 24 pens (1/2" diameter).
Each of the 24 pen holes is just over 1/2" square.
It is made of lightweight plastic.
You can use Velcro to mount it on any surface in your craft space. The velcro will allow you to pull the whole unit from where it is mounted and take it wherever you need it.
It makes such great use of vertical space and can fit just about anywhere. Even if you have a tight space, small space or limited space. This Marker Manager is portable with a slim profile allowing for managable storage of your markers.
It runs $10 and is sold by the fabulous folks @ Scrap Rack.com.
Click on my title above & it will take you to their site.
Recently, (when I was researching the item) they were sold out but maybe by now they have replenished their stock. It is easy to see why they would sell out so quickly.
It's practical, easy storage at an affordable price.
What crafter couldn't use that?