Two Sides sharpening stone One side is a ruby stone (red), the other side is the natural agate stone (white) Ruby stone is 3000-4000 Grit, can be used for fine grinding, natural agate stone is 8000-10000 Grit, can be used for polishing Mainly used in industrial instrumentation, precision parts, miniature knives, stones, measuring tools, cutting tools, instruments, carbide, etc.

• Size:50*25*10mm(1.97*0.98*0.39 inch)
• Grit:3000-4000 & 8000-10,000
• Material:Ruby stone and natural agate (as it is natural stone, some stone has other color like black or white dot etc, please pay attention)
• Color: red & white (as the picture)
• Package Included: 1x Two Sides sharpening stone

Size:50*25*10mm(1.97*0.98*0.39 inch)imported