( Pair inc Fittings ) Mainly for use as a custom fitment these transparent rocker covers have the added bonus of enabling you to witness the bike's rockers in motion and the oil flow to the rockers; fascinating and useful! Once fitted the bike can be used as normal. They are made from a very robust plastic that has been tested over many miles. Important to note: As should be the case with air cooled engines, it is vital that you don't leave your bike sat idling for more than 2 minutes otherwise damage may occur to the rocker covers. Despite being very robust, melting could occur in extreme cases if the bike is left to overheat.