These little springs are way more useful than you might think! Made from quality stainless steel that won't rust, so they last forever. The specs are perfect for small projects: 0.8mm wire diameter, 6mm outer diameter, and 25mm free length. You get 15 pieces in the pack, which is great because let's be real - springs have a way of disappearing when you need them! The polished surface looks professional and they have great mechanical properties - strong load capacity, high temperature resistance, corrosion resistance, all that good stuff. Perfect for furniture repairs, appliances, gates, screen doors, or any DIY project that needs a little tension or extension action. I've used them in everything from repairing screen doors to customizing tools to small machinery fixes. The stainless steel construction means they work indoors or outdoors without worrying about rust. Seriously, every DIYer should have a pack of these on hand - you'll be surprised how often you reach for them!