anyone know if this is as good as if I pour cement?

http://www.samsclub.com/shopping/naviga ... d=_Froogle

My only concern would be long term durability.

If they're base styrofoam with some concrete like surface poured over... I'd definitely not have a love fest over them.

It says: This item ships in 2 boxes, each box containing 3 pads each for a total of 6 pads.

I just wonder what the base material is.

I could be wrong but I would think that it is some heavy duty plastic...

It would have to be, considering what they're saying it can be used for.
If you decide to try it, let us know.

Thanks.