Great price on sorbothane sheets

If you've ever looked for sorbothane in flat sheets, you've probably seen the 6"x6" sorbothane tiles sold by various dealers for $20.

How about a 12"x12" sheet for a dollar less ($18.95)?. Edmund Scientific has it in their online catalog. Here's the link:
Thanks for the info!
I found out you can buy 24"x24" direct from Sorbothane for $97.00. The Edmund price is a lot better, shoulf it be used in one piece or can you use several pieces?