Transparent red insulation on the cable allows you to actually see the woven wire core inside. Just trim to length and crimp on terminals. It readily accepts all normal boots and terminals available at local part stores, or use with Rajah ends.
Not for use with multi-spark ignition boxes, such as MSD 6A or 6AL.
Learn how to properly attach new spark plug terminals and boots by searching on Youtube: how to Install Spark Plug Wire Ends.