Keeping leads under control can be awkward. These Rockler Magnetic Cord Keepers can hold your leads at a safe height off the floor, or hold them so you can find the plug. They can also be used to hold a pencil, these are always difficult to find in most workshops.
The opening is 8mm so easily holds a pencil, lead or even chuck key for a drill press.
38mm in diameter and 22mm high, they will not get in the way.
Sold in a pack of 2.