A small glow-in-the-dark whistle from Blue Lug Tandem, made to clip onto a zipper pull, keyring, or handlebar bag where it's easy to find in the dark.

Loud enough to be useful and light enough to forget you're carrying it — a small, practical safety add-on in Blue Lug's usual understated style.

See everything we carry from Blue Lug in our Blue Lug guide.