Color: Black + Red + Gold Accepts wires up to 4mm Material: Copper + Plastic Specification: 4mm Package Contents: 16 x 90 Degree Banana Plug (8pcs Black, 8pcs Red) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.