A bolt-down rotating ground anchor which is Oxford attack tested. The Unique rotating head allows easier fitment and better bike positioning. The 26mm diameter case hardened steel head resists all forms of attack (59mm internal  diameter allows all chains to be fitted) and the unique rotating head allows easier fitment and better bike positioning. Sold Secure is an independent, non-profit making organisation dedicated to reducing the risk of theft by testing security products. The same methods of attack used by criminals on the street are replicated by Sold Secure in the assessment of security products. Many insurance companies offer substantial reductions to those who use SOLD SECURE APPROVED PRODUCTS.