Moldex SparkPlugs® soft foam earplugs are made of extra-soft, extra light foam. Their tapered shape fits easily in the ear canal and seals gently and snugly without pressure. They're so comfortable you'll forget you're wearing earplugs and offer a high SNR35dB / NRR33dB, making them suitable for most noisy environments. So, while they look like fun, they provide serious protection. Random multi-coloured swirl makes for winning compliance to your hearing protection program. When it comes to comfort and compliance, nobody beats Moldex® to the finish line.