Smith's 4" Diamond Sharpening Stone in the Sharpeners department at Lowes.com
Smith's - TRI6 TRI-6 Arkansas TRI-HONE Sharpening Stones System Gray & Norton Knife Sharpener Stone Oil for Tool and Knife Sharpening Stone , 4.5 OZ - Yahoo Shopping
Smith's - 50556 -4 in. L Arkansas Sharpening Stone 1,200 Grit 1/pc.
Smith's MBS6 6” Natural Arkansas Bench Stone – General Purpose Sharpener – Straight Edge Knives, Tools, Broadheads – 1000 Grit Fine Sharpening Stone - Sharpening Stones - Amazon.com
Genuine Arkansas Whetstone Novaculite Slip Sharpening Stones 4" x 2" x — Taylor Toolworks