Features: CE and ANSI approved Self-aligning suspension easily adjusts muffs on the headband for quick fitting The soft foam-filled cushion provides a good seal for protection against harmful noise SNR: 26dB,NRR=21dB Specifications: Model Name Tolsen Ear Muff Model Number 45083 SNR 26dB NRR 21dB Weight 0.30kg Pair of ear muffs suitable for general purpose hearing protection, particularly when in a work environment with excessively loud noise levels, such as when using large power tools and workshop machinery. Soft foam-filled cushions provide a good comfortable seal for protection against harmful noise. Self-aligning suspension easily adjusts muffs on the headband for quick fitting. Noise reduction rated at 21dB. This indicates how much the overall noise level is attenuated or reduced by the hearing protector. Clean and disinfect cup, cushion and headband with warm soapy water, and dry with a soft cloth. Never use solvents, abrasives or noxious products.When not in use, it is recommended to store the earmuff in a clean and dry polybag.