Concertina is a razor-bladed defensive array. Resistant to the cutting by ordinary tools, it's an ideal product to prevent intrusions or vandalism.

Concertina is an aggressive barrier used to protect sensitive sites such as prisons, military areas, industrial areas and some residential areas.

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Among a wide range of concertina, Barbelé-sécurité.com offers concertina flat.

Concertina flat consists of steel wires with sharp blades arranged at regular intervals. Unlike single or double concertina wire, which have an "accordion" shape, concertina flat is distinctive for being narrow and flattened, which considerably reduce its bulk. With a thickness of just 10 mm, it can be fitted to a fence or a swing gate.