Smith's "Pocket Pal" multi-functional knife sharpener features pre-set crossed carbides and cermic stones, which provide the perfect edge every time. Carbides provide quick edge setting, and the specially shaped ceramic stones are designed to give you a razor sharp edge on either standard or serrated edges. A fold out, tapered round, diamond coated rod is designed for sharpening serrations and small gut hooks. Compact, lightweight, durable and comes with a lanyard hole.