Ask and thou shall recieve.
Top Cap full-colour printed onto an aluminium headset Stem Cap with a high gloss UV coating.
Supplied with a steel bolt and rubber cap.
Standard headset cap for 1 1/8th steerer Top Cap is 31.8mm in diameter and fits nearly every modern bike. Mountain, Road and Commuter.
Headset Stem Cap / Top Cap whichever you call its the finishing piece to your bike.