These LEIFIDE quick release pins are seriously versatile little hardware pieces that come in so handy for marine and other applications! The 8-pack gives you plenty to work with, and the stainless steel construction means they're completely corrosion-resistant - perfect for boat use. The dimensions are spot on: 80mm total length with 70mm usable length and 6mm diameter. The spring-loaded ball mechanism works smoothly, holding the pin securely in place until you need to remove it. I've used these for everything from bimini top attachments to deck hinges to trailer applications, and they've performed flawlessly. The quality is evident - they feel substantial and well-made, not like cheap hardware store pins. The silver finish looks clean and professional, and the galvanized surface adds extra corrosion protection. What's great is how many uses these have beyond marine applications - I've even used them for temporary structural connections in DIY projects. The package of eight means you can use them in multiple locations or keep spares on hand. They're small enough to store easily but strong enough for serious applications. Whether you're working on boat outfitting, need reliable pins for your bimini top, or just want quality quick-release hardware for various projects, these deliver professional-grade performance at a very reasonable price. They've become one of those 'always have on hand' items in my toolbox because you never know when you'll need a reliable quick-release pin.