Peltor™ 7100008764 Optime™ 105 Hi-Visibility Noise Reduction Earmuff, 30 dB Noise Reduction, Black/Green, Over The Head Band Position, ANSI S3.19-1974, CSA Certified Peltor™ 7100008764 Optime™ 105 Hi-Visibility Noise Reduction Earmuff, 30 dB Noise Reduction, Black/Green, Over The Head Band Position, ANSI S3.19-1974, CSA Certified