Shell is made from polycarbonate material, high temperature corrosion; Hardware terminals for copper sier, excellent conductive properties; metal shrapnel with detents to prevent the terminals move around, to ensure good contact Current: 50A (AC/DC) Voltage: 600V Terminal for diameter: 8 AWG The wire diameter: all American wire gauge Housing material: PC UL 94V-0 Colors: red,blue,yellow,gray,black(Color random delivery) Metal: copper plating sier Material: stainless steel shrapnel Size:5cm x 3.5cm x 1.5cm Weight: 25g Package includes:1 x sets of connector Note: Random color, don't accept the specified color. 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.