This safety sign was a great purchase to warn unauthorized personnel at my worksite .As my tests showed, the sign was clear and easy to read with bold lettering, ensuring that everyone was informed of the restricted area. The sign is made of durable materials as expected from an Industrial and Scientific product. However, the only downside is that the price is a bit high compared to similar products in the same category. Overall, I would highly recommend this Restricted Access Warning Sign for aSee full review