This is a connector kit for crimp terminals with male and female lugs, type 2.8mm / 4.8mm / 6.3 mm, delivered with insulating sleeves. Crimp terminals are made of copper with good conductivity, good for wire connection. Specifications: Type 6.3mm Type: thickness: 0.4mm (male spade), 0.8mm (female spade), compatible wire: 0.75-2.5mm (AWG 18-14) Type 4.8mm Type: thickness: 0.35mm (male spade), 0.5mm (female spade), compatible wire: 0.75-2.5mm2 (AWG 18-14) Type 2.8mm Type: thickness: 0.25mm (male spade), 0.5mm (female spade), compatible wire: 0.5-1.5mm2 (AWG 22-16) Features: -Cannot open under normal stress or wire pulling conditions. - Whole box designed to crimp solid wires or stranded wires well - Suitable for connecting in power cable (AWG 22-14) with electrical equipments - Works well with machines, cars, home appliance repair, computer or other automatic equipment Package Includes: 30pcs X 2.8mm Male Spade Crimp Terminal Connector 30pcs X 4.8mm Male Spade Crimp Terminal Connector 30pcs 30pcs X 4.8mm female crimp terminal connector 30pcs X 6.3mm female crimp terminal connector 90pcs