I've got the one from petsmart (plastic, grey/white & has little diamond shapes in it,?? guess easy wasy to explain)
I've had it for her since day one & she was very little- they have them in the store & then you can buy 2 extra panels for it online. Also, I think after I bought mine they had the very SAME xpen online at kmart in the baby (human)
section for alot cheaper. It has been a very well purchase, I went to lowes & bought a twenty dollar lin floor remnant to go underneath it.