But it is not a brush, it is a stripping knife. Check out what another groomer had to say about it:
"The furminator is a 40 blade on a plastic handle..This tool will cut your dogs coat. Old grooming style we used the 40 blade to hand strip terrier breeds and for blending in coat we had the 40 blades so that's what was used I never had a reason to get a stripping knife..Because they both cut..And they both have the same effect ..The stripping knife will be cheaper...
Pro Groomer 22 years.
Grooming Salon Owner 15 years."