The port in the Casifor dog nail grinder is way smaller than this cord and it doesn't fit. The product as stated in Amazon shows: "Replace Pet Nail Grinder Charger USB Power Adapter AC Wall Charging Compatible with Dremel PawControl,Casfuy/Casifor/Hertzko/Dremel/Razoo/Rexipets/Peteast Dog". So it is misleading and now I find myself with a grinder that I cannot charge in order to use, and a cord that it is useless to me and which I now need to return in order to get my money back. I have contacted the manufacturer of the Casifor nail grinder for dogs and they tell me that they don't sell the replacement cord, which leads me to believe that they don't stand behind their product.