American Made Knife Sharpener Made to Last.  Sharpens Kitchen Knives, Pocket Knives & Hunting Knives.

Block Knife Sharpener is a patented American made knife sharpener that is quick and simple to use. Developed in 1969 and in use by kitchen professionals ever since.  

The block sharpener is the only sharpener you'll need, it even sharpens serrated edge knives.

Beware of inferior copies. This is the genuine USA product, I use one myself in fact.