Pet perfect deshedding and grooming tool?

[Cypher]

My wife picked one of these up last night and the thing works OUTSTANDING. Gunner normally gets brushed at least once a week and I usually get a grocery bag of fur out of him. With this tool and about 45 mins last night and 20 mins tonight I got almost a 3/4 of a garbage bag out of him, I can't believe how much fur I can still get out....actually, I can't believe he has this much fur. lol
Has anyone heard of this tool before? I has a head that rotates 90 degrees and as 2 heads on it, the insert says it is a Love2Pet and is a de-shedding tool and rake brush, will this hurt his undercoat? The website on the insert says pizazzdirect.com but it doesn't go to the 2nd page....

Should I stop using this?

Edit: Here is a website with this product, http://love2pet.us/

[mrstu]

I have one myself and it works great.

[Cypher]

It works well and that's kind of my concern, does it take out too much fur? Is it going to pull out his undercoat?

[Laura]

His undercoat needs to come out if it is summer where you are.

[TJordan]

I got one of those about a month ago. Love it!! Butters hates it. But yes that undercoat needs to come out!! Too bad I can't explain this to my precious puppy!!!

[Cypher]

The WHOLE undercoat comes out??? WOW, I did not know that.