Hello
We have many yorkies who found out how to jump the pen so we bought higher pens and it fixed the problem. As also had puppies whom we where scared they could get their head stuck in the pen and we bough a small pen made with fiber (no holes) which was great. You can also have one completely closed off with softer fibers good for indoors when they jump and outdoors (keep's mosquitos out!) I have supplied the link to where I saw this pen. (Also provides shade in the sun) I have not tried this pen yet I just fond out about it. It also comes with a bag where you can carry it to the park or something similar in case you need a pen there. Good idea for a pen.
The only problem I find is the price get you money out $450.
Great Idea but Bad price.
http://www.petacular.com/products/Pu...Playpen-H.html
This would probably not be a good pen for me as I have many dogs (breeder) and we like to connect several pens together outside to give them allot of space to run around in the yard.
I hope this helps.
Marc-O