These ACCEL Motorcycle replacement boot and terminal kits come in an array of configurations to fit your needs. Spark Plug Boots and Terminals, Black, Straight, 8.8-9mm, Set of 10.ACCEL ignition coil boot packs are great for use with ACCEL spooled wire and custom bike installations. These terminal and boot packs contain premium-grade silicone coil boots with excellent resistance to flashover and crossfire. They feature spring-loaded brass or stainless steel terminals for maximum electric conductivity and corrosion resistance. ACCEL ignition coil boot packs are offered in a variety of boots and terminals for your bike's needs.