Lyman's deluxe anodized aluminum loading blocks are the ultimate choice for the serious reloader who demands precision and durability. Made from 6061-T6 aluminum, each block is CNC milled to tight tolerances, ensuring a precise fit tailored specifically to your cartridges. Unlike common plastic loading trays, these blocks are designed to fit specific cartridge sizes, eliminating the frustration of ill-fitting trays and ensuring that your reloading process remains smooth and efficient. Available in three different sizes, these blocks are capable of holding up to 50-round, helping to keep your bench organized and ready for action. The stick-on rubber non-slip feet provide extra stability, preventing any unwanted movement during use. With Lyman's deluxe anodized aluminum loading blocks, you're investing in a tool that will improve your workflow and elevate the quality of your reloads.