The Oxford Beast Lock is Oxford's largest and strongest ever lock, designed to resist angle-grinder attack. It features a 30mm hardened locking pin and is surface hardened throughout. This lock has been approved to the 4 highest international security standards and achieved the Sold Secure Motorcycle Diamond rating. The Beast lock has the same girth as a pint glass (approx. 90mm) and is constructed from solid steel, weighing 3.6kg.