These are strong and of great quality! I managed to clip my jack russel mix's toes and our foster mutts toes with ease (except they just hate having it done). I have not had a chance to try the file because none of my dogs will sit still long enough for me to try it! Overall, a great product and an even better deal. These make clipping my pups' nails so much easier.
i was hesitant to buy this leash because you hear horror stories of dogs breaking retractable leashes and running out in the road. Never a good outcome I rescued a male about 65 lb dog and built like a bull. I kept a double leash on him while testing this one. So far it has lived up to be the strongest retractable on the market. The owner of the company surely seems to be dedicated to offer a quality product and I wish him well. Try this leash you'll be glad you did