Couteau à aiguiser 400 1000 Grit double face Diamond Bench Stone Sharp Chop Slice

Diamond grindstone, lightweight and easy to carry, suitable for family kitchen tool sharpening, woodworking chisel, jade, seals, or carving knives. Double side grinding, convenient and portable, #400 side for grit coarse sharpening and #1000 side for grit fine sharpening.

eBay