It's obviously cheaper to buy the pine pellets at Tractor Supply, but if you don't have one of these nearby, here is a link to buy on Amazon. It will be a little more expensive to have it shipped to you, but consider it anyway because you are setting your puppies up for success in their potty training journey either with you or their new owners. Also, it's way less stinky and easy to clean up!

Buy on Amazon https://amzn.to/3fWlb3Q