3M™ E-A-RSoft Metal Detectable Corded Earplugs offer the comfortable hearing protection of 3M™ E-A-RSoft Yellow Neons, in addition to metal detectable features which prevent earplugs from contaminating products or processes. 3M™ E-A-RSoft Metal Detectable Earplugs were specially developed for food processing and other industries where it is critical to keep earplugs from contaminating products and processes. Recognized by most metal-sensing systems, these earplugs feature an implanted stainless steel ball bearing in the plug and metal particles in the cord.