【Foam Gun with Valve Switch】The set includes 2 foam guns and 20 tips, with a total length of 12.4 inches (31.5 cm). Be sure to clean the foam gun after each use to maintain its effectiveness. 【Precision Foam Gun】The foam gun is equipped with a copper nozzle, a locking valve and a spring-loaded trigger for precise control of the foam flow. Adjust the amount of foam dispensed using the trigger. spring and control knob to avoid overuse, reduce waste, and prevent spills and drips. 【Professional Polyurethane Foam Gun】Made of premium aluminum alloy, the foam gun is durable, corrosion-resistant, wear-resistant, and lightweight and compact. The well-designed nozzle ensures minimal foam waste and clean application. The locking valve allows for complete discharge of residual foam, ensuring clean and efficient use. 【Ergonomic Design】The ergonomic design of the expanding foam gun provides a comfortable grip for extended use and makes it a great assistant for your projects. 【Wide Applications】High