For a performance edge on the slopes, whether skiing or snowboarding, rely on DMT®'s Mini Diamond Whetstone™ sharpener. With just a few strokes of the diamond surface, you'll achieve clean and crisp edges. Compact, easy-to-carry only 70mm x25mm x 5mm. Extra-Fine diamond (9 micron / 1200 mesh) to polish and refine a razor edge after sharpening with a coarser diamond. No messy oils needed-use dry or with water. Durable construction will provide years of consistent performance and reliable service For proper tool maintenance, woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT® products. Made in USA.