Suitable for kinds of instrument, mechanics, lamps, model, etc. : Metal + ABS Plug Total Length: approx. 4 cm/4 cm Color: Red, Black Description: Made of alloy with good electrical conductivity, convenient to use Included: 50 x Red Connectors 50 x Black Connectors Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.