Featuring soft, attractive blue cups that are ideal for extended use, they grant constant support to your head & ears, providing a personalized fit; The tough, long lasting tension bands are easily adjustable for quick & convenient positioning. Dielectric: Ensuring optimum security, the dielectric insulation protects users from electric shocks and shorts; Our multi-functional design fully encompasses the ear for maximum insulation, while automatically blocking hazardous sound levels. Our Ear Muffs have a lightweight design build for comfort & convenience without compromising hearing protection; With durable ear cuffs made to withstand tough environments, they safeguard your hearing with a noise reduction of 25dB. Ear muffs can be the most effective equipment to protect your hearing from hunting, shooting, manufacturing, yard work etc.; H225 Standard Ear Muffs are independently tested and certified to NRR 25 (ANSI S3.19) and CSA Class A. Pair our 25dB Noise Cancelling Ear Muffs with Sellstrom’s 32dB NRR Disposable Uncorded Foam Ear Plugs to ensure maximum protection in high levels of sound exposure.