The RCBS Universal Case Loading Block was made from solid plastic and was designed to hold up to 40 individual cases at one time. By holding up to 40 cases at once, you can streamline your powder charging and inspection process, making reloading your favorite cases quicker and easier than ever. This RCBS Universal Case Loading Block features steeped holes that help to reduce powder spillage by minimizing case tipping. Though this loading block only holds 40 cases, it has 80 holes in it that are alternated to allow space between cases.