Kershaw's Ultra-Tek Blade Sharpener is the perfect little tool for honing your knives.  You can carry it out in the field with you to get that extra sharp edge back on your blade. The sharpening end of this tool unscrews from the handle and then can be screwed back on with the sharpener inside the handle.  Makes it really small and convenient for taking on the road, camping, or wherever else you may go.   Definitely not the tool for setting blade angles or doing a full resharpen, the Ultra-Tek does a great job of honing your blade after the edge is not quite as sharp as you like it.  This sharpener is easy to hold and easy to use.  

Steel:  600 grit, diamond coated, oval shaft  
Handle:  6061-T6 anodized aluminum  
Blade Length:  N/A
Closed Length:  N/A
Overall Length:  9 1/2 in. (24.5 cm)
Weight:  2.0 oz.