Auction is for a pair of Pontiac 2 bolt hole engine mounts. These mounts look to be urethane but I'm not 100% sure since I can't find a brand name on them. They are much harder than the normal rubber mounts and the rubber has a shinny black plastic look to it. I have had solid mounts before and used these in a 1969 Firebird and they are much harder than rubber mounts but not as harsh as metal solid mounts. These are very good for a powerful car and will last a long time. Please feel free to ask questions and happy bidding!