Just put that adapter money towards a Craftsman 2-ton racing aluminum jack, which has a wide, round, rubber-lined tray that easily swallows the jack pad, so zero damage. I just splurged on one, on sale for $180. If you deduct the $30 from the adapter, it'd really cost you $150
. Looks awesome, super light, and the 2-ton model lifts to 18-1/2", and lifts from 3-1/4". Don't get the little one; it's almost useless for a larger car, and only lifts to 14". Hope this helps gang.