Herm Sprenger Secure Buckle Pinch with nylon slip

I really love this on our 70lb spanish mastiff puppy. She doesn’t mind putting it on but it is present enough we dont have to make very many corrections on leash. As fast as she grows it is really nice to be able to add and remove links as needed. The only thing that would be nice is if the grey slide thay protects the clip didn’t slide off so easily.