Need some reliable torsion springs for your project? This 10-piece set of left-hand wound springs has you covered. Made from 65Mn spring steel, these are seriously durable little components with a 1.4mm wire diameter. They come in different outer diameters ranging from 7mm all the way up to 20mm, with angle options of 60, 90, 120, or 180 degrees - so you can pick exactly what works for your specific application. These V-springs (sometimes called hairpin springs) are perfect for all sorts of mechanical projects where you need rotational force or torque. The left-hand winding means they work in the opposite direction of standard right-hand springs, which can be crucial for certain mechanisms. Whether you're working on automotive applications, industrial equipment, electronics, or DIY projects, having the right torsion spring makes all the difference. The 65Mn steel construction means they can handle repeated twisting and returning to original position without losing their springiness. Each spring is precisely manufactured to ensure consistent performance across all 10 pieces. They're small but mighty - perfect for space-constrained applications where you still need significant torsional force. From garage door mechanisms to industrial controls, retractable pens to agricultural equipment, these versatile springs have countless uses. The package gives you plenty to work with for testing and final installation. No more searching for that perfect spring - this set covers multiple sizes and angles in one convenient package.