Features: Premium replacement switches for car washer machines, crafted with plastic and brass component for long lastingly performances in high pressure cleaning systems. Features automatic induction pressure switches technology and pre assembled design for effortlessly installation on portable/handheld pressure washers without wiring complexity. Ideal for DIYer enthusiasts, professional car detailers, and homeowners maintaining garden tools or outdoor cleaning equipment requiring reliable pressure control. Perfectly integrates with 55/58 360 type high pressure water guns during car washes, patios cleaning, or agricultural equipment maintenance in residential/commercial setting. Includes clear step by step installation guidelines for secure motor wire connection and ball spring mechanism alignment, ensuring compatibilities with standard 19 wrench toolkits. Specifications: Component:Plastic+Brass Installation method: Step1: Use Number 19 wrench to remove the screws. Step2: Remove the screws and spring Step3: Install the parts and tighten them with a Number 19 wrench. A: Press the empty terminals. Component line B: Connects and disconnect the motor wires. Step1: Remove the motor wire. Step4: Remove a wiring from the motor at the circle. A: One wire in the component is connection to the switches terminals (the terminals just removed is empty) B: Another component wire was just connection with the newly removed motor wire. Package Includes: 1 Set Automatic Induction Pressure Switches note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.