Includes both red and black connectors for easy identification of different circuit purposes. Features nickel-plated copper 4mm pitch U-shaped connection wire inserts for low loss, corrosion resistance, and long-lasting durability. Equipped with a 4mm jack at the end of the connector, compatible with all 4mm sheathed or unshielded sockets. Y-type conversion plug with high-quality electrical performance, strong applicability, and professional design for safe use. These versatile U-shaped spade plugs are suitable for testing, multimeters, electronic applications, and more, providing a stable connection. Item Type: Spade Plug Material: Copper, PA U-shaped Cutting Opening Size: Approx. 4mm/0.15in Jack Diameter: Approx. Φ4mm/0.15in Color: Red, Black Uses: Suitable for testing and multimeters, electronic applications Rated Voltage, Current: 30Vac-60Vdc, Maximum 36A Connection Mode: Transfer Includes: 5 x Red Spade Plugs, 5 x Black Spade Plugs