Experience Field-Ready Sharpening with the Risan Ceramic & Carbide Outdoor Knife SharpenerThe Risan Ceramic & Carbide Outdoor Knife Sharpener combines two sharpening surfaces - carbide for fast edge setting and ceramic for fine polishing - in a compact, portable format built for outdoor use. New and unused, in original box.The Specs Type: Outdoor / portable knife sharpener Surfaces: Carbide (coarse) + ceramic (fine) Format: Compact, portable Condition: New - never used, original box Why the Risan OutdoorCarbide abrasives remove metal quickly to reset a dull or damaged edge; ceramic rods then refine and polish the edge to a sharp, working finish. The combination of both in a single portable unit makes this the ideal sharpener for camping, fishing, hunting, or any situation where you need a sharp knife away from the kitchen. Compact enough to fit in a pack or tackle box. Suitable for most outdoor and kitchen knives with a double-bevel edge.Care & Maintenance Wipe clean with a damp cloth after use Store in a dry place or in the included case if provided Not suitable for serrated blades or single-bevel Japanese knives