Pack of 3, 4″ Long 100 GRIT Engine Cylinder Hone Replacement Stones 100 GRIT (Coarse) Use with our PMD Products $21.99 Cylinder hone available on eBay (search our store part #9700) or any 3 arm hones that have a 5/8″ Wide Stones Replacement stone holder is 5/8″ wide with bonded stone 1/2″ wide Aluminum oxide stones bonded to aluminum stone holder Can use with other engine cylinder hones with 5/8″ stone mounts Includes three stones Stone w/ holder dimensions: 4″ L x 5/8″ W x 3/4″ H Shipping determined on the shipping tab above, will ship internationally See our auctions for Flex-Hone Honing Tools, all sizes and grits, or storage battery chargers