great for dematting [SEP] i have got a huge black russian terrier his hair gets matted pretty easily and i was having a hard time in the past with other tools even the furminator could not handle his matting this tool wad a shot in the dark lower priced and worked fantastic it sheds and demattsworking like a charm for my large breed takes a little work but it is effortless my only wish was a larger tool for larger dogs this one does the job but it could cut my time down a bit if it was bigger