Comfort Security Service Tips F.A.Q. If the box has been reinforced with for instance metal framing to enhance stability, that can often signify weaknesses in design and materials. Ensure that locks and fittings with which the box is mounted on a roof rack are solid enough. All details shall endure vibrations and other stress. Also security against theft is increased when all materials are best of breed. If the material is bending, and you can reach in with your hand or with any tool between the top and bottom of the box, you face an increased risk of theft. High-quality locks are a basic requirement. Hence, ensure that the locks have no plastic details that could break in cold weather or during burglary Test the box before buying it. Both the box and its locks shall endure even rough handling. © Fiber-Form   design notes