Pure copper plated with 24k gold, blister packaging. Bright electroplating, good insertion and extraction force, and good contact performance. The banana plug has a split structure, and the plug can be unscrewed. 2 pieces in a blister box, one red and one black. The price of one banana plug is 2.60 yuan, and two are 5.20 yuan. (Factory direct sales, large quantity and price negotiation discount.)