For senior dogs and dogs with weak legs. To prevent slipping on flooring. These are rubber grips that fit on the claws. ToeGrips - Brand: Dr. Buzby - Product Name: ToeGrips - Size: S - Color: Red My dog didn't like them and kept biting them off, so they didn't work. 3kg Maltese The vet charged over 7,000 yen for 20, including fitting.