Features: This banana sockets are suitable for different electrical testing which has good high temperature resistance and impact resistance. Different 5 colors and 20pcs 4mm Banana Jack Socket Adapter, enough quatity can meet your needs. 4mm standard attached - great for 4mm Banana Plug Connector in electrical testing Specification: Length: About 30mm Color: Red, Black, Yellow, Green, Blue Material: Nickel-plated Copper & PA66 Current : MAX 32A Weight: About 5g Way of Connecting: Suitable for 4mm Banana Plug Connector Package Content: 4 x Yellow Banana Jack Socket Adapter 4 x Red Banana Jack Socket Adapter 4 x Black Banana Jack Socket Adapter 4 x Blue Banana Jack Socket Adapter 4 x Green Banana Jack Socket Adapter