Bella Mia shredded hers NO MATTER what. We even duct taped them to the floor. She would shred whatever she could get a hold of and pee on the floor. She shredded any paper material she could find, napkins, toilet paper, pee pads, newspaper.
She has not (surprisingly) shredded her puppies pee pad. She actually leaves it alone. 1 of the puppies tries to shred it but he really doesnt have many teeth yet.