Used Dental Sharpening Stones that can sharpen anything!

Description

Used Dental Sharpening Stones that can sharpen anything!
One made by Arkansas Abrasives – made from Novaculite (Silicon
Dioxide crystals.) 3.75x1x1/4
The other from GFC (plastic cover is cracked) 4x1x1/4
Both have been used on one side only
Sold as is
Shipping within the Contiguous US
Good luck and thanks for looking!