Ultimate Edge Sharpeners

[Onehandclapping]

I saw the Ultimate Edge Sharpeners for sale in the Blade Forum store, and they look like a good idea that will give me a good edge on my kitchen knives. Is there somewhere I can look to see the differences between the diiferent type offered? What is different about the Companion, Standard, and the Gourmet? I think they are all the same grit, 600, but what is the length of each? Thank you to all who can tell me.

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[ROBB]

These are the best diamond sharpeners I have come across.They are 600 grit with an oval shape so they are great for serrations also.
I have the Commercial 10" by 3/4" wide
The Sportman 5" by 1/2" wide-oval
Toolbox and Workbench 5" by 3/4 wide-oval
Household 10" by 1/2" wide-oval
Professional 12" by 3/4" wide-oval