koltose by mash - craft rocks for painting 100% natural flat river stones extra-large 3.5” - 5” inch set of 20 is up for auction in Arts, Crafts & Sewing. The current bid is $6.00, 88% below the $48.45 MSRP, in New/Like New condition. Bid on this item at our Strongsville - Drake Rd location before the auction closes.