It�s a high quality spark plug wire, terminal and boot that are made to be a direct replacement to your stock plug wire found on all Zenoah and CY engines. Comes complete with glue lined heat shrink and instructions. Requires installer to remove fan cover for proper installation. When used with stock plastic spark plug cover, it does make for a tight fit but it does fit. Make sure to click the picture to see this unit installed. Choose from Red or Blue wire.