The Redding E-Z Feed Shell Holders are unique, because they feature a tapered design that makes case insertion easier than ever. Additionally, these shell holders are precision-machined to very close tolerances to ensure a perfect fit for your cases and to eliminate any potential problems. Not only are Redding E-Z Feed Shell Holders available in a variety of sizes, but the universal design of the shell holder itself ensures that it fits all of the most popular reloading presses. These shell holders are also heat-treated and made with outside knurling, so they are both easy to handle and easy to change.