Product Description For hand grinding valves Synthetic rubber vacuum cup is resistant to oil, grease and gasoline 15/16" cup diameter V-Twin Manufacturing Valve Grinding Stick at J&P Cycles Browse all J&P Cycles deals $21.99 In Stock at J&P Cycles Price verified 2d ago Buy Now at J&P Cycles Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand V-Twin Manufacturing Size OS Condition New MPN 16-0604 V-Twin Manufacturing