The 102V series is a remake (replica) of the original Milk Bottle style Rotomatics first introduced by Grover. With a 18:1 gear ratio, this unique style will make any vintage guitar appear truly original. Offered in the original finishes of nickel, chrome and gold.All Grover Machine heads carry a lifetime warranty from the manufacturer.Buy with confidence from SportHiTech, an authorized Grover Dealer. All products are factory fresh and in original retail packaging.