Check the listing for details. Lansky Eraser Block Cleans Restores Crock Sticks LERAS. Condition: New. Listed at 9.09 USD. INFINITY SACAGAWEA DOLLAR COIN LANSKY Eraser Block Model #: LERAS A special, pliable abrasive-type eraser used to clean metal filings which accumulate during the sharpening process on the alumina ceramic Crock Stick sharpening rods. Proper rod cleaning maximizes sharpening efficiency. Can also be used for cleaning metal and sports equipment. ABOUT LANSKY SHARPENERS Since 1979, Lansky Sharpeners has been recognized as the world leader in Sharpening Technology. Each Lansky Sharpeners product is carefully designed to meet unparalleled performance, reliability, and safety standards. All Lansky Sharpeners products are engineered to be completely ambidextrous, and manufactured with superior quality materials by craftsmen who are committed to providing you with a product that is second to none. Bonus: PayPal buyers get complimentary access to belote's weekly newsletter.