RUKO 400 Grit Diamond Sharpening Rod Pen Knife Sharpener(4-Inch)
RUKO RUK0040-CS 400 Grit Diamond Sharpening Pen, 4" Retractable Rod with Pocket Clip; 400 Grit Diamond Dust quickly sharpens Knives, Tools and Fish Hooks; Multiple surfaces in One Rod (Concave, Flat and Grooved Channel for Fish Hooks); Weight: 2.40 oz; Lifetime Warranty