4 mm Banana Plug and relaxed retraction coil cord.

• Barrel type banana plug fits industry standard banana jack 0.166" (4.22 mm)
• Metallized, high flex tinsel, black jacket
• One megohm, 1/4 watt, series resistor, molded within snap assembly, limits current for operator safety
• Spring loaded 4 mm snap socket
• Made in the United States of America

ANSI/ESD S20.20 Paragraph 6.2.2.1 Personnel Grounding Requirement, All personnel shall be bonded or electrically connected to ground or contrived ground when handling ESD sensitive items. When personnel are seated at ESD protective workstations, they shall be connected to the common point via a wrist strap system.