I had the feeling there weren't any sellers of the great blue pads, however I did find a Medical supply that sells them 100 for $35.00 and the size is 23x36 and they adverstise they are very thick...so I ordered them, we will see. Having 3-5 furkids up in our new apartment is really getting to be a hairpulling out situation,,,We have a little grass box my husband built on the balcony, they all go out and use it and come back in and tee tee on the pads...lol its like they save the majority of their uuh bladder contents for the pads,,,