Each organizer comes equipped with standard (1-3/8”) easy snap-in inserts that are perfect for most tools, and one spare large insert (2-1/16”)  for larger tools. You can customize your organizer with what ever combination of inserts you would like for the same price. Additional inserts are $5 each or you can get a custom sized insert up to 2-3/8” for $10 each. The organizer accommodates tools of various sizes without the need to remove the batteries, but also has a convenient shelf for optional battery storage.