Lansky LRRDF Retractable Diamond Sharpening Rod

Lansky's Retractable Diamond Sharpening Rod fits almost anywhere. The sturdy 5 inch all-brass case is knurled to provide a comfortable non-slip grip. Just twist the cap when you want to sharpen a knife and the diamond sharpening rod extends 3.5 inches and locks in place. It's designed to work like a Butcher's rod and can be used for sport, work and kitchen cutlery, and it's grooved for sharpening fish hooks and other pointed objects.