Thanks to Jo for this one. Everyone has one (a nice speed, not a Jo – heaven forbid) so here's the sticker. Good on a chainstay but you can stick it anywhere. Opaque is white on a black sticker. Trans is black ink on a clear sticker – so it'll work pretty well on a light coloured item (like a hot pink toptube for instance). Sticker shipping (UK) is a flat £3 regardless of how many you buy.