SAFETY: Featuring an SNR of 27db, Blackrock's Ear Defenders offer you effective hearing protection whilst working hard SECURE FIT: The soft foam ear pads are adjustable for an optimum fit that helps keep the ears covered and protected, whilst the padded headband offers excellent comfort so that you can keep these on for long periods without feeling disagreeable IDEAL FOR: The Blackrock Comfort Ear Defenders reduces noise exposure levels so that you can continue working safely in loud environments, such as construction work and home improvement & DIY LIGHTWEIGHT: Blackrock have engineered the Comfort Ear Defenders to maintain a light feel, which reduces the users fatigue on the head and neck PEACE OF MIND: Certified to international standards by UK government-approved testing companies - when it comes to protection, you’re in safe hands with Blackrock