【Versatile Pin Sizes for Various Needs】The kit includes six different pin sizes (1mm, 1.5mm, 1.8mm, 2.2mm, 2.8mm, and 3.5mm), catering to a wide range of wiring projects. 【Secure Snap-On Design】The snap-on design of the automotive wire connectors ensures accurate and complete insertion into the housing, preventing pins from slipping out of the power plug connectors.