protective eyewear, namely, safety glasses, eyeglass side shields, welding goggles, splash goggles, impact goggles, eyewear cases, and eyewear retainer cords; personal head and face protective devices, namely, hard hats, safety helmets, safety visors, chin protectors, crown protectors, face shields, and cap adapters in the nature of adapters for mounting protective face shields to hard hats and safety helmets; personal hearing protective devices, namely, ear plugs and sound-reducing ear muffs...