Scratch Pad Back Paws
Place your pet’s front paws on a step stool (with treats in hand to train), with the scratch pad in placed in between their front and rear paws. Place it at an inclined angle such that in order to reach for the treats they will start scratching their rear paws. Link their reward to their act of scratching rear nails (not pads). Ask for the dig cue. And please note that front paw nails grow faster than rear paw nails, which means the frequency of needing to file the rear paw nails is lower.
Training filing the rear paws may take slightly longer than training for front paws as they’re more aware of the front paws so a little patience will go a long way!