3.5" wide, 4" high, 10" long.

I have a carry case I bring to the range with all my suff and it fits right in.

I loaded it up with 100, 110 & 120, 9 of each color. We only shot about half of them but I don't see any reason to unload with the airtight seal the tubes provide.

Positive: I was able to capture all my spillage while loading. It may have saved me a 100 grains or so.

Negative: You're temped to speed through rounds. The load while you shoot method helps slow the process down. It will take some dicipline moving forward.