The Blue Lug Shifter Boss Cover is ideally suited to covering up those pesky unused down tube shifter bosses.  Who'da thunk it?  Like if, for instance, you have a Rivendell that you've set up as a 1x, and that left hand down tube barrel adjuster is just there looking sad and useless. 

Come with a mounting bolt.  Brass, Silver metal of some sort, or black with matching black bolt.  Très chic.

Sold Individually.