The warning sign is with prominent design ensures that it is easy to see, warn people to keep out of areas where radio frequency and electrical may be present. Suitable for use in a variety of environments, including factory, workshop, and parking lot, this caution sign is of great use. Features - Color: Yellow -Material:Iron - Size: 30.00X20.00X0.20cm/11.79X7.86X0.08in -Its highly visible and prominent design helps to ensure that individuals are away of the area where radio frequency may occur. -This caution sign is suitable for use in a variety of environments, including factory, parking lots and warehouses. -Light weight design make this warning sign easy to use in a variety of settings. -Smooth surface, without acute edges, the radio frequency sign can be used rest assured. -Sturdy material, the radio frequency caution sign will not easy to deform or break, withstand long time use. Package list: 1 x Warning Sign