Product review (2 stars): they are expensive--and I looked at Sears too---brittle and whomever packages them does not take great care.
They are what they are, but they are very brittle--and horribly expensive.  ******ALWAYS ALWAYS ALWAYS INSPECT PACKAGE IMMEDIATELY! DONT WAIT UNTIL YOU ARE READY TO COMPLETE YOUR PROJECT****** One of the two I ordered was broken in half---and I seriously believe it was broken when it was put into the package, because it was in a long tube, and there were no bends in the cardboard, and then that tube was put in an additional tube. There is no way possible it broke in transit. The packager was lazy and did not own up to his/her breakage.  However, I waited too long to getting around to making my repairs, and missed the return by 2 days.  so I get to pay another $32 for a brittle piece of plastic to fix the one that broke when I was trying to clean the nooks and crannies in an oven door.  dummy.