Howard Leight Leightning Noise Blocking Slimline Headband Earmuffs L1. We offer complete line of Howard Leight Hearing Protection. For our complete selection of products by Howard Leight on sale please visit our Howard Leight page. For more Hearing Protection please visit our Hearing Protection store section. Specifications for Howard Leight Leightning Noise Blocking Slimline Headband Earmuffs L1 R-01524: Manufacturer: Howard Leight Color: Black/Gray NRR: 25 dB Quantity: 1 Pair Size: One Size Additional Features: Over the Head Features of Howard Leight Noise Blocking Earmuffs: Robust steel wire construction withstands demanding use especially in tough environments Snap-in ear cushions make replacement quick and easy Padded foam headband delivers longwearing comfort with minimal pressure on the head Three attenuation levels allow for targeted protection for a variety of applications Telescopic height adjustment remains fixed during usage Package Contents: Howard Leight Leightning Noise Blocking Slimline Headband Earmuffs L1 R-01524 Howard Leight Leightning Noise Blocking Slimline Headband Earmuffs L1 R-01524