Check the listing for details. Design Engineering 10681 RFI Shield Split Sleeve 1/2" x 36". Condition: New. Listed at 32.89 USD. RFI Split Sleeve .5in x 36in RFI Shield reduces Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) from ignition systems & high voltage wires that can affect computer systems, electronic fuel injection, radios, and other sensitive components. Electronic fuel injection systems thrive in an environment free from RFI. RFI Shield safeguards the delicate electronic components, optimizing fuel delivery and engine performance. Drive with confidence, knowing that your vehicle's critical systems are shielded from interference that can compromise safety and performance. Non-adhesive tape wraps around wires without having to disconnect wiring. A 17.5 grounding strap included. Tape comes in 1/2in width and 3ft length. Includes DEI Quick Fix Silicone Tape to seal ends.