The ZWILLING Sharpening Stone Set includes three professional-grade glass water sharpening stones designed to sharpen, refine, and polish kitchen knives to razor-sharp precision. This complete knife sharpening system provides everything needed for blade maintenance and restoration. 400 Grit Stone: Repairs damaged edges and reshapes dull blades 1000 Grit Stone: Delivers fine sharpening for everyday cutting performance 5000 Grit Stone: Creates extra-fine finishing and polishing for professional results Bamboo Sink Bridge: Adjustable whetstone holder that stabilizes stones during sharpening Cleaning Stone: Restores water stones to like-new condition Instructional DVD: Step-by-step sharpening guidance included Made in Japan: Professional-quality craftsmanship This water sharpening stone set is ideal for home cooks and culinary professionals who want to maintain sharp kitchen knives with precision. The multi-grit progression allows you to repair, sharpen, and polish blades in one complete system.