Easy to fit fuel filler locking device. The unit fits neatly under your fuel filler neck and when it's padlocked shut the fixing screws cannot be tampered with. The high security 3/16 stainless steel 6mm hinge bolt cannot be sawn through and the nut cannot be removed either. The device fits most 1 1/2" and 2" deck fillers that have 4 screw fittings. Locking device & Padlock sold separately.