Materials:

Retractable Sheath Banana Plug:
Plug Body: Tellurium Copper, Gold Plated.
Banana Spring: Beryllium Copper, Gold Plated
Compression Spring: Stainless Steel
Tip: Nylon, Color Matches Color of Wire
Insulation: Nylon Molded to the Plug and Wire. Color Matches Color or Wire.
Wire: 12 AWG, Stranding 7 x 38/36 Bare Copper, PVC Insulated, .144 (3,66mm) O.D.
Marking: POMONA 5291A-XX

Ratings:

Operating Temperature: +55° C (+131° F) Max.
Operating Voltage: 1000V per IEC1010-2-031
Current: 7 Amperes