The Redding E-Z Feed Shell Holder Set comes with six of the most popular shell holder sizes that feature the Redding E-Z Feed design. The shell holders included in this set are as follows: #1 #10 #6 #12 #18 and #19. The Redding E-Z Feed Shell Holder Set comes in a heavy-duty plastic storage box to keep your shell holders in one place when they are not in use. This ensures that you will be able to find your shell holders when you need them. These shell holders feature a unique tapered design to make case insertion easier.