Delta Plus INTERLAGOS Safety Ear Defenders SNR 33 dB. These ear defenders feature ABS cups and pads filled with PU foam for comfort and protection. They are designed for industrial use, offering a Noise Reduction Rating (NRR) of 33 decibels. The adjustable headband ensures a secure and comfortable fit for all users. Conforms to CE and EN 352-1 standards. Product weight is 230g. Color: Black.