The 3M Peltor Optime III is a high-performance hearing protection device developed to be used in extremely noisy environments, such as airports, theaters, ships, machinery, power plants, and printing. - Contoured, modern space-saving shells - Full mouusse pads and liquid for comfort - Head profile for constant pressure on the ear and effective protection - Deep inside the shells to reduce moisture and heat - Large and comfortable cushions, to reduce pressure on the ears and improve comfort and port Measures: - Width: 11.1 cm - Height: 21 cm - Length: 14.5 cm - Weight: 0.4 kg