Good for those on shift work,
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This review is from: Honeywell 3301105 Howard Leight Individually Wrapped Laser Lite Ear Plugs (Box of 200 Pairs) (DIY & Tools)
They help cut down the level of noise from the building site outside my bedroom window - ideal because I work late shifts and sleep until midday or the early afternoon.
They're comfortable enough and highly visible.
Best of all, they're fantastic value.