Solid engine mounts work best in racing applications and may contribute to increased noise, vibration and harshness. 1" OD x ¼" wall DOM steel tubing. MIG welded for the utmost in strength. Glossy durable black powder coat. Heavy duty engine mounts may not work with Oldsmobile or Pontiac engines.I'm happy to answer any questions. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Steering & Suspension\Shocks, Struts & Assemblies"." and is located in this country: US. This item can be shipped worldwide.