The 108-0301-001 is a white insulated solderless tapered handle Banana Plug with nickel silver spring as per standard QQ-C-533, nickel plated brass body as per standard QQ-B-626D, nylon 6/6 as per ASTM D4066 insulated handle. Fast solderless connection of up to 16 gauge wire. Recessed plug body to limit shock hazard.