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If you need to display prints and notices outdoors in a tamper-proof poster frame our lockable snap frame with an intergral waterproof seal could be the answer.
Click on the image to see the open frame - there is a foam rubber gasket seal all the way round the frame interior. So not only is your sign or poster safe from interfering fingers, it is also protected from the elements.
The 'lock' is achieved by a screw which can only be undone with an allen key. Each side interlocks with the next - so once the first side is opened, the other three sides can also be accessed. Then the frame contents can be changed with relative ease.
