"Comet" Replacement End Cap / Exhaust Muffler Tip fits on 4.5" Tab Performance slip on exhaust system for Harley Davidson and Indian motorcycles. Quantity of ONE end cap. Zombie ring inserts will not fit in these end caps, they will on the next batch. Cerakote ceramic finish that can withstand 1800 Fahrenheit. Billet aluminum machined and coated in the USA. Hardware (bolts) not included.