Perk up those flies with a phosphorescent underbody or tag. UNI-GloTinsel is a flat, film-like material treated to glow in the dark. Spooled like tinsel, GloTinsel comes in six colours. A combination package of 20 spools is offer which include the UNI-GloThread, the UNI-GloFloss and the UNI-GloTinsel.