The Lansky 2 Rod is a very stable and compact knife sharpening system.
It works well in the kitchen and it quickly breaks down for storage in a drawer.
The Turn Box family of knife sharpeners is also great for outdoors men on the go because it is lightweight and stores easily into a backpack.
It only takes a few swipes to maintain an edge (a bit more if you have a really dull knife).
There are two pre-set knife sharpening angles in the wood block 20 degree fine angle & 25 degree medium angle.