Jackson Safety 13822 H20 Detectable Reusable Corded Metal Detectable Earplugs Thermal Full brim shade & runoff Choose gas type h2s Full brim shade & runoff Choose full brim This is a front brim model this MSA 10250593 is a Type II Class E full brim helmet and a safety helmet with integrated chinstrap — a genuine non vented full brim safety helmet for utility and electrical crews these earplugs contain detectable components that can be identified by metal detection systems and X ray equipment if a plug is accidentally introduced into a production line If a plug falls into product — during an inspection or a shift change — it can contaminate an entire batch