I know the Roverpet Whelping Box Puppy Keeper will offer additional safety to your dog, For instance it will help them avoid those accidents out side the puppy pen.
Most importantly it is made from textilene ®. Sunsure breathable vinyl coated fabric.
Fits a 4′ Wide x 4′ Long Puppy Pen.
Total length of fabric 204″ & attaches w/ Velcro 6″ high.
Items Included: #44DPK
(1) Puppy Pet Whelping Box Keeper 204″ long
Firstly: Puppy Keeper can reduce the risk of possible suffocation.