SparkPlugs® Disposable Earplugs 29dB, Class 5 SOFT COMFORTABLE FIT SparkPlugs earplugs are made of extra-soft, extra light foam. Their tapered shape fits easily in the ear canal, and seals gently and snugly. Theyre so comfortable youll forget youre wearing earplugs. HIGHEST SLC(80) EARPLUGS SparkPlugs earplugs offer the highest independently tested 29dB, Class 5, making them suitable...