Check the listing for details. 10000# 3000# Grit Knife Razor Sharpening Stone Whetstone Polishing Tool Two Side. Color: Multicolor, Condition: New. Listed at 9.47 USD. Item number: 1615Product description: Color : As Shown In The Picture 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) Model : red 3000 & white 10000 Grit Size : Approx 100 x 25 x 12mm (4” x 1” x 15/32”) Weight : Approx 100g (3-17/32oz) Feature : 100% Brand new and high quality A fine-grained whetstone lubricated with oil, used for fine sharpening The Ruby sharpening stone and Agate Stone, For Polishing, Sharpening Can make mirror surface, mirror finish The Ruby Sharpening stone is made from sintered crystals of synthetic ruby It's extremely hard, maintain their shape well and are resistant to wear Note : Please pay attention the size,it's very small, but it's natural Please allow 1-10mm errors due to manual measurement Package included: 1Pcs Knife Sharpener