[]The female and male terminals are made of brass and the insulating sleeves are made of plastic, high conductivity, anti-oxidation, durable enough for your use. [Size]2.8mm Type Compatible Wire: 0.5-1.5mm2 (AWG 22-16); 4.8mm Type Compatible Wire: 0.75-2.5mm2 (AWG 18-14); 6.3mm Type Compatible Wire: 0.75-2.5mm2 (AWG 18-14). [Easy Wiring]Easy Using: You just need to connect the male and female terminals at both ends, and then the male and female terminals docked to complete the wiring easily, and also disconnected when not needed. [Wildly Application]It can be wildly used to home appliances, computer, audio system for battery, motorcycle, scooter, auto, car, truck, boat, rocker switch quick connecting/disconnecting etc. Material:Brass + plastic colour:Golden<br><br>Package Contents: 50 * Female terminals 50 * Male terminals 100 * insulating sleeve 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 +/- 1-3cm.