The Metal Manual Quick Release Coupler for RC Hydraulic 1/14 3 Arms Excavator EC160E is a precise and dependable tool for any RC enthusiast. This coupler is made from high-quality, rust-resistant metal, ensuring durability and longevity in any outdoor environment. Its manual quick release feature is quick and easy to use, eliminating the need for tools or excessive force. This feature is crucial for users who want to quickly connect and disconnect their hoses or extend booms while maintaining control and precision. The coupler's snug fit allows for a strong and secure connection, preventing leaks or disconnections during heavy use. Its compact size makes it easy to store and transport, ensuring it's always ready for use in your RC hydraulic system. Whether you're a beginner or an expert, this coupler is a must-have for all RC hydraulic enthusiasts looking for a reliable and user-friendly product.