The ISO safety sign "Warning of Objects Underwater" by Brady is an effective warning sign that indicates potential hazards in water bodies. Measuring 100 mm in width and 87 mm in height, it is highly visible and ideal for use in various environments where water is present. The sign is made from laminated polyester, making it robust and durable, while the color scheme of black on yellow provides a clear and striking warning. This warning sign is not only functional but also compliant with ISO safety standards, underscoring its reliability. It is versatile for use in industrial areas, recreational waters, or other environments where the safety of individuals must be ensured. The sign is produced in Belgium and is part of a wide range of safety markings aimed at raising awareness of hazards and preventing accidents.