Zaklee Transparent Cam Cover SpecificationsThe transparent cam covers from Zaklee Corp. allow for a quick visual inspection of the cam belt timing markings and crankshaft pulleys. It is both practical and stylish the perfect touch for any highly tuned engine !Designed in the USA they are made from extremely tough and scratch resistant polycarbonate.Instructions for installation and maintenance :Screw all bolts in place with thread glue (for example Loctite)Tighten slowly using only your hand without forcingCan be cleaned using hot water and soap