 pen
I may be very wrong, but I get the feeling you are not in the USA...do you have a Walmart, KMart type store near you..if so, buy a large RubberMade container...much like an underbed storage box. The pups can not fall or climb out of these containers..even an over sized cat litter pan works well...mom can get in, but pups can not fall out. Put newspaper in one end for them to potty if they want and an small towel in the other end. Best wishes |