EXCELLENT INSULATION: These wire connectors are crafted from superior plastic shells that offer top- insulation, reducing the risk of unstable connections and potential leaks. The excellent insulating properties help to amplify safety and performance in all your electrical projects. Easy to use and reliable, they are your dependable for all wiring tasks. SPRING DESIGN: Our connectors come with a robust metal spring design, which guarantees a stable and secure connection every time. This innovative design eliminates connection failures, ensuring a continuous flow of efficiency and reliability in your wire connection tasks for enhanced results and productivity. COMPACT & ORGANIZED: This set of connectors are featured in a compact and portable round base design, making transportation a breeze. Each connector is detail-orientated, labeled with its model and specification for easy referencing. Comes in a transparent plastic storage box to keep connectors well-organized and within at all times. EASE OF USE: Our wire caps are designed for convenience, requiring only simple insertion of the wire into the cap and a twist to the connection. They also offer good detachability, which implies they are swift to repair and replace, significantly reducing downtime and improving efficiency. VERSATILE APPLICATION: Applicable in a wide array of wire connections including household circuits, industrial circuits, and lighting circuits among others. Our wire caps are pleased to a range of electrical applications, adding value and accuracy to your wiring tasks. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:Blue Material:Plastic Package Contents: 1000 * wire connector nuts Only the above package content, other products are not included. Note: Light reflection 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.