Boat owners and sailing enthusiasts, this MarineNow sailing block is serious quality for your rigging needs! Made from marine-grade 316 stainless steel, this pulley is built to withstand harsh saltwater environments without corroding. The 25mm size with nylon sheave provides smooth operation while reducing wear on your lines. With dimensions of 45mm length, 27mm width, and 15mm thickness, it's compact yet robust, weighing just 20 grams. The single lashing eye makes attachment straightforward, and it handles lines up to 1/4 inch or 6mm in diameter. The safe working load of 750 pounds is impressive for its size, giving you confidence in its strength during use. Whether you're using it for sail control lines, dinghy rigging, or any marine application where you need reliable pulley action, this block delivers professional-grade performance. The nylon sheave rotates smoothly, reducing friction and making line handling easier. The 316 stainless steel construction is the gold standard for marine hardware, offering superior corrosion resistance compared to other grades. If you're tired of cheap pulleys that seize up or corrode after one season, this MarineNow block is built to last through many sailing adventures. It's one of those essential boating components that, while small, plays a crucial role in your vessel's operation and safety. Seriously, having reliable blocks like this makes sailing so much more enjoyable and stress-free.