Oxford Terra Force Ground Anchor (OF442) Case hardened concrete in steel floor anchor Simple and easy to fit, most DIY stores now supply ready-mixed concrete - it could not be easier ! 26mm diameter case hardened steel head resists all forms of attack 59mm (approx. 2.3in.) internal diameter allows all chains to be fitted Independent Sold Secure Motorcycle Gold approved <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.