Brand new. The 1270# is a BNC Plug to Double Stacking Banana Plug Adapter converts double banana jack test instruments to BNC coaxial configuration for added shielding protection. For test versatility, banana plugs can be vertically and horizontally stacked to the adapter. Banana plug has beryllium copper nickel plated springs features for tarnish resistance and long insertion life. Banana plug is made of brass with nickel plated finish and ABS molded insulation