Adjustable: 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. Noise Suppression: 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. Certified: 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. Frequently Bought Together: 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.