This is a grey replacement headband for the Ledlenser SEO5 headlamp. Over time a headband can stretch, fade or get damaged, especially when it is used for running, hiking or work in dusty and wet conditions, and fitting a new band restores a snug, comfortable fit without having to replace the whole headlamp. It is intended to fit the SEO5 lamp head and battery housing in the same way as the original band. Only the headband is supplied; the headlamp, lamp head and batteries are not included. Please check that your headlamp is an SEO5 before ordering, as bands for other Ledlenser models are different.