Fine threads without burrs smooth operation and prevent jamming or air leakage. Reinforced springs provide excellent resilience and maintain shape without deformation. Air inlet and outlet holes are precisely machined, featuring clear patterns and no burrs for a secure fit. High structural strength and good plasticity contribute to visible quality and reliable performance. Smooth finish enhances durability and functionality, minimizing the risk of air leaks. This product is designed for optimal performance with its fine threads and reinforced springs, ensuring a seamless user experience. The machining of air inlet and outlet holes guarantees a secure connection, while the smooth and high structural strength enhance its reliability. Ideal for various applications, this product for its quality and efficiency. Color: Black Material: Metal Package Contents: 1* Foot Pedal Valve Tool Switch 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.