Lightweight yet rugged construction offering protection to BS EN 352.1:2020. Adjustable swivel cups for optimum comfort and safety. Fully approved to protect against high noise levels in most working environments. SNR Rating 24dB. Features and Benefits • Lightweight yet rugged construction offering protection to BS EN 352.1:2020. • Adjustable swivel cups for optimum comfort and safety. • Fully approved to protect against high noise levels in most working environments. SNR Rating 24dB. • Model No. 406 Specifications Model No 406 Brand: Worksafe