This tool is my saviour! i have been struggling with my dog shedding so much fur, but can't seem to get at it with just a undercoat rake (the type that is like a straight comb), and pin brush was not cutting it. this tool with the double side "claws" is very effective, and helped get the shedding problem down significantly. the fine rake and the very fine tooth comb are nice additions, to clean up the loose fur the dematting get the loose fur out at the end of a comb session. would highly recommend.