Lockitt Mobile Security & Accessories: Oxford BEAST 30mm Padlock for 22mm Chain
Motoworld Singapore - Oxford Lidlock Helmet Lock A lightweight aluminium outward-opening carabiner mechanism carabiner to attach to the helmet's D-rings or to secure your helmet so that would-be thieves don't walk off
Oxford LidLock - Black : Oxford Products
Amazon.com: MEETLOCKS Motorcycle Helmet Cable Lock with T Bar 4-Digit Resettable Combination PIN Lock Cable Caribeaner Lock Device Secures Your Motorbike : Automotive